Ratio Calculator

Simplify ratios, split an amount in a given ratio, or scale a ratio up or down.

I want to	Simplify a ratio A : B
A	16
B	24

I want to

Simplest form

2 : 3

16 : 24 simplifies to 2 : 3, also written 0.666667 : 1 or 1 : 1.5.

Exact fraction. Checked exactly.

Method: Divide both sides by the greatest common factor
Worked out with: AllCalcHub exact fractions (whole-number arithmetic, no rounding)
Check: Every step recomputed with exact fractions

As A : 1: 0.666667 : 1
As 1 : B: 1 : 1.5
A as share of total: 40%

2 : 3 as equal parts

About the Ratio Calculator

A ratio compares quantities: 16 : 24 means 16 of one for every 24 of the other. It simplifies like a fraction, by dividing both sides by the greatest common factor (16 : 24 = 2 : 3). To split an amount in a ratio, divide it by the total number of parts and multiply.

The formula

Share of A = Total × A ÷ (A + B)

Worked example

Split 200 in the ratio 2 : 3

5 parts, each 40
A = 80, B = 120

Questions people ask

How is a ratio different from a fraction?

2 : 3 compares the parts with each other; 2/5 compares one part with the whole.

How do I simplify 1.5 : 2.5?

Multiply by 10 to get 15 : 25, then divide by 5: 3 : 5.