Question

What is 4 2/7 * 2 1/7 ?

Answer 1

@iGreen

Answer 2

First convert them into improper fractions.

To convert a mixed number into an improper fraction, you multiply the denominator with the whole number, then you add it to the numerator.

\(4 \dfrac{2}{7} \rightarrow 7 \times 4 + 2\rightarrow 28 + 2 \rightarrow 30 \rightarrow \
\dfrac{30}{7}\)

\(2 \dfrac{1}{5} \rightarrow 5 \times 2 + 1\rightarrow 10 + 1 \rightarrow 11 \rightarrow \
\dfrac{11}{5}\)

Now multiply the tops and bottoms:

\(\dfrac{30}{7} \times \dfrac{11}{5} \rightarrow \dfrac{30 \times 11}{7 \times 5}\)

Answer 3

Can you multiply 30 * 11 and 7 * 5? @elephantinair77

Answer 4

330/35

Answer 5

Yep.

Answer 6

We can simplify this by converting it back into a whole number.

\(\dfrac{330}{35} \rightarrow 9 \dfrac{3}{7}\)

Answer 7

so the answer is 9 3/7

Answer 8

Yep.

Answer 9

thank you.

Answer 10

No problem.

Answer 11

Welcome to Open Study!

You can give medals by clicking 'Best Response'. @elephantinair77