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3 years ago

13

What is the quotient a-3/7÷3-a/21

2 answers:

Svetach [21]3 years ago

8 0

Its -3 I just took the test

Airida [17]3 years ago

3 0

I wish you were using parentheses here. I must assume (without knowing for sure) that y ou mean

a - 3/7
----------
3 - a/21

The LCD here is 21, since 7 divides into 21 without a remainder.

Thus, multiply numerator and denominator by 21:

21a - 9
-----------
63 - a

You could leave this result as is, or you could factor out 3:

7a-3
3 ---------
63-a

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