You do by subtracting one from the previous number and adding 10 to the top number of the digits you are regrouping. Subtract those two digits and you should get your answer.
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What is the definition of Adding and Subtracting Like Fractions
yes you should use a common denominator when subtracting with fractions, it makes it much easier.
you take away one of the whole number=then you add or subtract your fractions=
What is the answer for 8 1/3 - 5 2/6
To combine the fractions or subtract the fractions. Same method with mixed numbers.