Question

To find 15/16 multiplied by 4/5 Kali writes 15/16 multiplied by 4/5 =3/4 multiplied by 4/5=3/5. What mistake does she make? Determine the correct answer

Answer 1

Answer:

The mistake is to make $\frac{15}{16}=\frac{3}{5}$

The correct answer $\frac{3}{4}$

Step-by-step explanation:

This is the operation performed by Kali:

$\frac{15}{16}*\frac{4}{5}=\frac{4}{5}*\frac{3}{5}=\frac{12}{25}$

but 15/16 ≠3/5, so knowing this   $\frac{a}{b}*\frac{c}{d}=\frac{a}{d}*\frac{c}{b}$  ,  then

$\frac{15}{16}*\frac{4}{5}=\frac{15}{5}*\frac{4}{16}=3*\frac{1}{4}=\frac{3}{4}$

Answer 2

Step-by-step explanation:

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