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I think that the easiest way is probably (1) to convert to improper fractions, (2) then get a common denominator, (3) add or subtract, (4) reduce, and finally (5) convert back to a mixed number.

That isn't what you are taught in school. In school you would (1) go straight to the common denominator then (2) see if it is possible to subtract, you don't have as many difficulties to consider in addition, then (3) you may have to 'borrow' 1 from a whole number and turn it into a fraction to make the denominator large enough to subtract, (4) subtract the whole numbers and subtract the fractions, (5) reduce the fraction as needed. In addition you just (1) get a common denominator (2) add whole numbers and fractions (3) reduce the fraction and in some problems change it into a proper fraction and increase the whole number.

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โˆ™ 2013-05-30 08:51:51
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Q: How do you add or subtract unlike fraction as a mixed numbers in simplest?
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What are the steps to subtract unlike fractions?

first find a common denominator then subtract the top numbers


How can the greatest common factor and least common multiple help you work with fractions?

Finding the GCF of the numerator and the denominator of a fraction and dividing them both by it will give you the simplest form of that fraction. Finding the LCM of unlike denominators and converting them to it will make it possible to add and subtract unlike fractions.


Can you subtract unlike terms?

No. You can't subtract unlike terms


How do you subtract unlike fractions?

The first thing you obviously do is find an equivalent fraction for thedenominator number at the bottom of the fraction.).After you've done that you gotta subtract whatever you put to the top you put to the bottom! :>


How do you order unlike fraction?

The simplest way is to convert them to like fractions, or percentages.


How do you add and subtract mixed numbers with unlike denominators?

just change the fration with the smallest denominator and add or subtract the way you always do.


Why is it important to find the LCM of 2 numbers?

It will help when you want to add and subtract unlike fractions.


What are exact numbers?

Exact numbers are defined numbers unlike measured numbers that often feature a fraction part. They are mostly integers found as counts of objects.


What is the benefit of getting the least common multiple of two or more numbers?

It will enable you to add and subtract fractions with unlike denominators.


Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,


How can knowing the GCF and LCM help you when you add subtract and multiply fractions?

Knowing the LCM will help when adding or subtracting unlike fractions. By finding the LCM of the denominators, (called the lowest common denominator) you can convert unlike to like fractions and proceed with the adding or subtracting. Knowing the GCF helps reduce a fraction. By finding the GCF of the numerator and the denominator and dividing both of them by it, you can reduce a fraction to its lowest terms (simplest form). If the GCF is 1, the fraction is in its simplest form. You can successfully multiply fractions without knowing the GCF or LCM.


How do you add and subtract fractions with unlike denominators without finding a common denominator?

The fastest and surest way to do that is to have a calculator that has a fraction button. (a b/c)


How can using the GCF and LMC help you you add subtract and multiply fractions?

To add and subtract unlike fractions, find the LCM of the denominators and convert them to equivalent like fractions. You don't have to do anything to fractions to multiply them, but you may need to reduce one after multiplying. To do that, find the GCF of the numerator and the denominator and divide both of them by it. If the GCF is 1, the fraction is in its simplest form.


Subtract fractions with unlike denominators?

2/6


What are fractions with unlike denominators mean?

The denominator is the bottom number in a fraction. Fractions like 1/3 and 1/4 have different numbers on the bottom. Those are unlike denominators.


How do you subtract fractions with unlike?

Before you can add or subtract, both fractions must have the same denominator, andmaking that change without changing the value of either fraction is your job. The bestchoice for a 'common' denominator is usually the least common multiple of the originaldenominators.


What is a fraction with different denominators called?

Unlike or dissimilar fraction.


How can you use equivalent fractions to help you add and subtract fractions with unlike denominators?

Change each fraction to an equivalent fraction with the same denominator. 3/8+5/12= 9/24+10/24=19/24


What is the definition to unlike denominators?

unlike denominators: the bottom number of a fraction. to have unlike denominators you must have two fractions with a different number on the bottom of each fraction.


How do you add and subtract unlike metric units?

You would have to convert the units to be alike, then you would be able to add and subtract them.


What is the unlike fraction for 17and12?

Any fraction whose denominator is not 12.


Why do you find common denominators?

In order to add or subtract one fraction from another, they must have a common denominator, or the same denominator. That's because it's impossible to add two fractions that have a different number of parts.


How is finding the least common multiple of two numbers helpful to adding fractions?

When those two numbers are the denominators of unlike fractions, finding the LCM (in this case, the LCD or least common denominator) and converting the unlike fractions to equivalent fractions with the same denominator will allow you to add and subtract them.


What is a situation where you would use LCM?

To add and subtract unlike fractions.


How do you subtract integers like and unlike sign?

what's 8+15=