Find the ratio of 90 cm to 1.5 m.

Explanation

we know to find ratio the quantities should be in same unit

so,`1.5m = 1.5 × 100 cm= 150 cm`

so,ratio =` 90 /150`

`= (30 × 3) / (30 × 5)`

`= 3/5`

`= 3:5`