2 :4

2:4 simplifies to 1:2.

Reason: gcd(2,4) = 2, divide both terms by 2 → 1:2.

Extras:

• As a fraction: 2/4 = 1/2
• As a decimal: 0.5
• As a percentage: 50%

If you want, I can show how this applies in a proportion or in percentage of a total.