Question

Simplify the three-term ratio `3/4`:`5/6`:`7/8`​ to an integer ratio. What is the resulting ratio?

विकल्प

• 18 : 20 : 21

• 9 : 10 : 21

• 18 : 20 : 24

• 6 : 5 : 7

Answer 1

18 : 20 : 21

Explanation:

The denominators are 4, 6, and 8.

Their L.C.M. is 24.

Multiply each term by 24:

`3/4` × 24 = 18 

`5/6` × 24 = 20 

`7/8` × 24 = 21,

So the integer ratio is 18 : 20 : 21