Frequently Asked Questions: This page contains answers to common 
questions of students and parents.

1. How do I multiply fractions?
2. How do I divide fractions?
3. How do I add or subtract fractions?
4. Where can I find information online about multiplying fractions?
5. How do I add or subtract integers (or rational numbers)?

How do I multiply fractions?

change them to
improper fractions
and multiply

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How do I divide fractions?

change them to
improper fractions,
then multiply by the
reciprocal of the 
2nd fraction

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How do I add or subtract fractions?

find a common
denominator

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Where can I find information online about multiplying fractions?

Go to
"Links"
menu at the top of
this page and scroll
down to find
websites 
on this topic.

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How do I add or subtract integers (or rational numbers)?

To add, there are 2 rules: a) if the signs are the same, add the 
numbers and keep the same sign,  b) if the signs are different, 
subtract the smaller absolute value from the larger absolute 
value and use the sign of the number with the larger absolute 
value.   EX: -51 + -25 = -76 and -99 + 123 = 24.

To subtract, there are 3 words to remember, ADD THE OPPOSITE, 
then solve it like any other addition problem.
EX: - 12 - 52 = -12 + -52 = -64   and -47 - (-73) = -47 + 73 = 26.

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