Question

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What is 7*2 3/7 ?

A. 7 6/7
B. 14 3/7
C. 14 6/7
D. 17 I think it's C

Answer 1

D

Answer 2

Its 17.

Answer 3

What math is this?

Answer 4

It's pre-algebra and @xxccjxx can you explain the answer?

Answer 5

ok i get it now, you forgot to properly write the equation 7*(2 3/7). Just multiply it in a calculator and you get 17

Answer 6

You multiply 7 by 2 3/7. So you if you multiply 7 by 2, yout get 14. and if you multiply 7 by 3/7 you get 3 so add 14 and 3 together and you get 17.

Answer 7

xxcc you lost me after you said multiply by 2 and get 14..Everything after I don't understand and @Fransisco_w no it's not suppose tp be in parentheses

Answer 8

Multipy 7 x 2

Answer 9

Yout get 14

Answer 10

multiply them separately and add them at the end

Answer 11

multipy 7 by 3/7 yout get 3

Answer 12

Yes, what @Fransisco_w wrote is correct.

You can do this at least two ways:

1) convert to an improper fraction

\[7*2\frac{3}{7} = 7*\frac{2*7+3}{7}= 7*\frac{17}{7} = \cancel{7}\frac{17}{\cancel{7}} = 17\]

2) use distributive property
\[7*2\frac{3}{7} = 7*(2+\frac{3}7) = 7*2 + 7*\frac{3}{7} = 14 + 3 = 17\]

Answer 13

Add them together and you 17

Answer 14

Exactly what i said @whpalmer4

Answer 15

Ohhh ok I understand it a little more now

Answer 16

Thanks everyone