Fraction of a Number Practice

Fractions practice

Find a fraction of a whole number, like three fourths of 20.

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About this practice

Find a fraction of a whole number.

Each question asks for a fraction less than 1 of a whole number. The numbers are chosen so the whole number divides evenly by the denominator, so the answer is always a whole number. Enter it as a whole number.

Typical level: Grade 4 and beyondStudents begin multiplying a fraction by a whole number in Grade 4. Curriculum timing varies.

Find one equal group, then take some

The denominator says how many equal groups to split the number into. The numerator says how many of those groups to take.

three fourths of 20

= 20 ÷ 4 = 5

Split 20 into 4 equal groups. Each group is one fourth of 20, and it has 5 in it.

= 5 × 3 = 15

Take 3 of those groups: 3 fourths of 20 is 3 groups of 5.

= 15

When the numerator is 1, one group is the whole answer: 1/4 of 20 is just 5.