Question

What is the quotient? StartFraction a minus 3 Over 7 EndFraction divided by StartFraction 3 minus a Over 21 EndFraction

Answer 1

Answer:

the answer is -3

Step-by-step explanation:

Answer 2

Answer:

The quotient is -3

Step-by-step explanation:

we have

$\frac{a-3}{7}:\frac{3-a}{21}$

Multiply in cross

$\frac{(a-3)21}{(3-a)7}$

Simplify

Remember that

$\frac{21}{7}=3$

substitute

$\frac{(a-3)3}{(3-a)}$

we know that

$(3-a)=-(a-3)$

substitute

$\frac{(a-3)3}{-(a-3)}=-3$