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How do you subtract mixed numbers that do not have the same denominator?
Find a common denominator of the fraction parts (the least common denominator is the popular choice). If the fraction part of the subtrahend is bigger than that of the minuend, you need to subtract 1 from the integer (whole number) part of the minuend and add it (as a fraction) to the fraction part. For example, 5 3/7 becomes 4 10/7. Then you can subtract the fraction parts by subtracting the numerators, and subtract the integer parts, provided the integer part of the minuend is greater than or equal to that in the subtrahend. If not, reverse the roles of the minuend and subtrahend and use the above method to subtract, then make the sign of the difference negative.
How do you do fractions with the numerator bigger than the denominator?
You do them the same way as you "do" other fractions.
What is 10-11?
21
What could you subtract from the number 10 to get an answer that is bigger than 10?
If you subtract a negative number from another number, you always get a bigger number. That is because minus a minus is a plus So you could subtract any negative number from 10 and answer is bigger than 10.
What fraction is bigger 34 or 115?
They are both integers, not fractions; and 115 is bigger.
