First you find the common denominators, here is an example: 4/5 - 3/8. You have to make them both have the same denominator, Here is what you would do:
Multiply 4/5 by 8/8 and you'd get 32/40, now you would take 3/8 and multiply it by 5/5 and get 15/40. 32/40-15/40 is a lot easier
no, to add and subtract like and unlike fractions the denominator has to be the same,
first find a common denominator then subtract the top numbers
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.
convert at least one of them so that they have the same denominator, then proceed with the addition or subtraction
Like fractions have the same denominator, unlike fractions don't.
no, to add and subtract like and unlike fractions the denominator has to be the same,
first find a common denominator then subtract the top numbers
To get the right answer when you add or subtract unlike fractions.
Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.
The question is based on a complete misunderstanding of what is required. Unlike denominators are NOT required!
The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.
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.
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.
convert at least one of them so that they have the same denominator, then proceed with the addition or subtraction
Like fractions have the same denominator, unlike fractions don't.
"Unlike" fractions.
The fastest and surest way to do that is to have a calculator that has a fraction button. (a b/c)