What is 45% expressed as a decimal?

To convert a percent to a decimal, divide by 100: 45 ÷ 100 = 0.45.

What is 2/5 expressed as a percentage?

2 ÷ 5 = 0.40; multiply by 100 to get 40%.

Convert to common denominator: 2/6 + 1/6 = 3/6 = 1/2.

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What is 3/4 expressed as a decimal?