I need help with this question subtract and simplify
see to solve such questions first you need to make the denominators common
to make the denominators common we take the lcm of 9 and 45 which is 45.
so to turn the denominator of 7/9 into 45 we multiply numerator and denominator by 5.
so now 35/45 - 22/45 =13/45 is the answer.
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