Question 318578
Dividing by a fraction is the same as multiplying by its reciprocal,


{{{((4m + 16)/(10))/((3m + 12)/(18))= ((4m + 16)/(10))*(18/(3m + 12))}}}

{{{((4m + 16)/(10))/((3m + 12)/(18))= ((4(m + 4))/(5))*(9/(3(m + 4)))}}}
{{{((4m + 16)/(10))/((3m + 12)/(18))= ((4*cross((m + 4)))/(5))*(3/cross((m + 4)))}}}
{{{((4m + 16)/(10))/((3m + 12)/(18))= 12/5}}}
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a) is the correct answer.