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juin [17]
3 years ago
13

What is the quotient a-3/7÷3-a/21

Mathematics
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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