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What is the rule for adding fractions?
They have to have a common denominator
What is the state rule for dividing fractions?
Take the 2nd fraction, switch the denominator with the numerator, multiply across, simplify.
Changing fractions into percents?
To change a fraction to a percent you must first divide! Say you have 1/4 as your fraction. You have to divide the top number by the bottom number, which will give you 0.25. From there, to find a percent from a decimal, you always have to move the decimal point to the right TWICE. So, following that rule, you'll find the percent, which in this case is 25%. :) Hope this helped!
Why must mixed numbers be converted to improper fractions before multiplying or dividing?
You do not need to convert them, but it makes the calculation much simpler. For example to multiply 31/4 by 71/5: 31/4 = 3 + 1/4 71/5 = 7 + 1/5 31/4 x 71/5 = (3 + 1/4) x (7 + 1/5) = 3 x 7 + 3 x 1/5 + 1/4 x 7 + 1/4 x 1/5 = 21 + 3/5 + 1 3/4 + 1/20 = 21 + 12/20 + 1 + 15/20 + 1/20 = 22 + 18/20 = 232/5 Or, using improper fractions: 3 1/4 = 13/4 71/5 = 36/5 31/4 x 71/5 = 13/4 x 36/5 = (13 x 36)/(4 x 5) = (13 x 9)/5 = 117/5 = 232/5 Which with less calculations to be done is simpler and less liable to incur a mistake. With division the calculations would be horrendous whereas with improper fractions the "invert divisor and multiply" rule can be used very effectively: 31/4 / 71/5 13/4 / 36/5 = 13/4 x 5/36 = 65/144
Why should you simplify each radical in a radical expression before adding?
It is easier to work with simplified radicals just as it is easier to work with simplified fractions. A fundamental rule for math is to simplify whenever possible, as much as possible.
What is an algorithm that will work for any 2 fractions including mixed numbers?
An algorithm is a rule or procedure for solving a particular problem. We are not told what is the problem involving these 2 fractions which is to be solved.
What is general rule for writing a mixed number as an improper fraction?
To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
What is the rule for subtracting fractions?
First, change it so that the two fractions have the same denominator (by changing the fractions into equivalent fractions). Once the two fractions have the same denominator, it is simply a case of subtracting the numerators, leaving the denominator the same. Finally, reduce the fraction to its lowest terms (if possible).
What is the general rule for writing a mixed number as a imprper fraction?
As an improper fraction the numerator will be greater than the denominator or it will be a 'top heavy' fraction
How do you turn whole numbers into fractions?
Put them over 1. ie, 5 = 5/1.Mixed NumbersAs part of multiplying or dividing fractions, mixed numbers are turned into improper fractions. Use the existing fractional denominator and multiply the numerator by the whole number.Example :3 1/5 as a fraction is [ 3 x 5/5 ] + 1/5 or 15/5 + 1/5 = 16/5.
What is the general rule for writing a mixed number as an improper fraction?
First you multiply the whole number by the denominator then add the numerator to the product then put the answer over the denominator
The birthday rule applies to determining what?
Fractions
What is the rule for adding fractions?
They have to have a common denominator
In mathematics is there something that uses recipes for fractions?
use your pattern to write a rule for equivalent fractions
What are three rules you can use to compare fractions?
Rule #1 When two fractions have the same denominator, the bigger fraction is the one with the bigger numerator. Rule # 2 When comparing fractions that have the same numerator, the bigger fraction is the one with the smaller denominator. Rule # 3 You can convert the fractions and then just put the greater than, less than or equal to sign to see what the comparison is between the fractions.
What is the rule for Equivalent Fractions?
3/4 750
What is the rule in adding fractions having the same denominator?
Sum of the fractions = sum of numerators divided by their common denominator. Adding Fractions rule implies to addition of fractions having same denominator and as well as adding fractions with different denominators. So rule for adding fractions having the same denominator is add the numerators and simplify For example : 3/5 + 2/5 + 9/5 = (3 + 2 + 9)/5 [add the numerators] = 14/5
