Question

Reduce the ratio to its lowest form. 16:20

Answer 1

The lowest form of the ratio 16:20 is 4:5.

Firstly, we have to find the common factors of 16 and 20,

The factors of 16 and 20 are,

16 = 4 × 4

20 = 4 × 5

Hence, the common factor between 16 and 20 is 4.

To find the lowest form of the ratio, we will divide both 16 and 20 by 4

The ratio can be written as 16/20

= 16 ÷ 4

= 4

= 20 ÷ 4

= 5

= 4:5.

Therefore, the simplest form of the ratio 16:20 is 4:5.

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Answer 2

ANSWER

4 : 5

EXPLANATION

We have the ratio 16 : 20 and we want to reduce it to lowest form.

This means that we have to factor out any number that is common between the two numbers in the ratio.

We have:

$\begin{gathered} 16\text{ : 20 = }\frac{16}{20} \\ \text{Divide both numerator and denominator by 4:} \\ \Rightarrow\text{ }\frac{4}{5}\text{ = 4 : 5} \end{gathered}$

The lowest form of the ratio is 4 : 5