Question

divide 7/8 and 7/40
simplify your answer

Answer 1

do you mean divide 7/8 by 7/40?

Answer 2

just multiply 7/8 by 40/7

Answer 3

280/56=5

Answer 4

yeah divide 7/8 n 7/40

Answer 5

okay just flip the 7/40 to 40/7 and multiply

Answer 6

40/7 is called the reciprocal

Answer 7

im not sure how to do this doesnt the denomiantor have to be the same?

Answer 8

when you divide two fractions the best way to do it is to multiply the first fraction by the reciprocal of the second fraction.

Answer 9

ok and after that

Answer 10

then just multiply both numerators and denomintors like I did and simplify

Answer 11

7*40=280
8*7=56
so your answer is 280/56= 5

Answer 12

thanks

Answer 13

If this is what you mean, divide 7/8 by 7/40, then here it is:

\( \dfrac{7}{8} \div \dfrac{7}{40} \)

Keep the same first fraction and multiply it by the reciprocal of the second fraction (to get the reciprocal of a fraction, just flip it):

\( =\dfrac{7}{8} \times \dfrac{40}{7} \)

Now multiply the numerators together and the denominators together:

\( \dfrac{7 \times 40}{8 \times 7}\)

Now reduce before mutiplying the numbers:

\( =\dfrac{7 \times 5 \times 8}{8 \times 7}\)

\( =\dfrac{\cancel{7} \times 5 \times \cancel{8}}{\cancel{8} \times \cancel{7} 1 }\)

\(=5\)

Answer 14

thanks

Answer 15

wlcm