how do i multiply a fraction such as this?

Question

6/8 X 8/6 X 9/5 X 15/20

Answer 1

the first two terms equal one.......the second two.....just multiply them across.....so 9 times 15 is 135.....and 5 times 20 is 100......now divide them......135 / 100.....this simplfies to 27/20

Answer 2

6 + 8 + 9 + 15
8 6 5 20

Answer 3

first, 6/8 x 8/6 = 1. do that and your work will be cut in half.
second, 5 and 15 have a common factor of 5.
simplify: 9/1 x 3/20. then multiply: 27/20.

Answer 4

Two methods. The hard way is to simply multiply out by brute force and get 6480/4800, which you then try to reduce to something more reasonable.

The easy way: note that 6/8 and 8/6 cancels. Note also that 15/20=3/4. So you have 9/5*3/4, which gives you 27/20. Note that this is the same as the original answer, but you don't have to waste time reducing it.

Answer 5

6/8 X 8/6 X 9/5 X 15/20
By multiplying together all the numerator Numbers the divide with all the denominator numbers like this
=(6x8x9x15)/(8x6x5x20)
Cancel the numbers which are at the numerator and denominator
=3/20

Answer 6

Reduce to lowest terms:
6/8=3/4, 8/6=4/3, 15/20=3/4 divide both sides by same number

3/4x4/3=1 9/5x3/4= 27/20 9x3=27; 5x4=20

27/20 or 1 7/20

Answer 7

First reduce all the fractions
3/4 x 4/3 x 9/5 x 3/4
The first two terms are reciprocals, the numerators and denominators cancel and the product is 1.
= 9/5 x 3/4
= 27/20

Answer 8

( a / b ) x ( c / d ) = ( a x c) / ( b x d )
so, the canonical answer is
( 6 x 8 x 9 x 15 ) / ( 8 x 6 x 5 x 20) = 6480 / 4800 = 27 / 20 = 1.35

Answer 9

First do. 6/8x8/6. then do 9/5x15/20. then multiply the answer you got for 6/8x8/6 multiplyed by the answer you got for 9/5x15/20.

Answer 10

27/20

(many of the terms cancel out)