What are benchmark fractions?

Common benchmarks are 0, 1/2, and 1. Estimating means rounding the fraction to the nearest benchmark.

How is 'nearest 1/2' determined?

Compare the fraction to 0, 1/4, 1/2, 3/4, 1 and pick the closest (e.g. 2/5 ≈ 1/2).

Yes. The tool can show the fraction as a decimal alongside the estimate.

Estimate a fraction by rounding to the nearest 0, 1/2, or 1. Useful for quick mental math and number sense.

Numerator

Denominator

What are benchmark fractions?: Common benchmarks are 0, 1/2, and 1. Estimating means rounding the fraction to the nearest benchmark.
How is 'nearest 1/2' determined?: Compare the fraction to 0, 1/4, 1/2, 3/4, 1 and pick the closest (e.g. 2/5 ≈ 1/2).
Can I see the decimal value?: Yes. The tool can show the fraction as a decimal alongside the estimate.

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