Question

Which pair of fractions are proportional? 1435 and 2142 67 and 1621 3654 and 69 2136 and 1425

Answer 1

36/54 and 6/9 is the correct answer cross multiply 54x6=324 and 36x9=324

Answer 2

`(36)/(54)` and
`(6)/(9)`

Explanation:

We are given that some fractions

We have to find the pair of fractions which are proportional

We know that if fraction

`(a)/(b) ,(c)/(d)` are proportional

Then , product of a and d is equal to product of b and c.

In
`(14)/(35)\; and \;(21)/(42)`

Product of 14 and 42

`14* 42=588`

Product of 35 and 21

`35* 21=735`

Hence,
`(14)/(35)` and
`(21)/(42)` are not proportional.

2.
`(6)/(7)\;and\;(16)/(21)`

Product of 6 and 21

`6*21=126`

Product of 7 and 16

`7* 16=112`

Hence, they are not proportional.

3.
`(36)/(54)` and
`(6)/(9)`

Product of 36 and 9

`36* 9=324`

Product of 54 and 6

`54* 6=324`

Hence, the pair of fractions are proportional.

4.
`(21)/(36)` and
`(14)/(25)`

Product of 21 and 25

`21* 25=525`

Product of 36 and 14

`36* 14=504`

Hence, pair of fractions are proportional.