Often, we are asked to convert a mixed number to an improper fraction or the other way around.
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.
To convert an improper fraction to a mixed number, divide the denominator into the numerator. The answer is the whole number. Put any remainder over the original denominator to create the fraction part.
22/7 = 3 and 1/7
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you have to multiply the top and bottom number by the same number
by multiplying the denominator with the whole number and adding the numerator. the denominator will remain the same.
1.21 as a mix number
17/8 = 15/8
if a number can change randomly it is called a variable