Basic Fraction of a Number

What is 3/5 of 50, and how do you work it out without guessing? Finding a fraction of a number is a skill you will use constantly, and these quizzes make the method automatic.

Finding a Fraction of a Number

Each quiz asks you to take a fraction of a whole number, with prompts like 1/2 of 20 and 3/5 of 50 in the first set, then trickier bottom numbers such as sevenths, as in 4/7 of 35 and 5/6 of 66. The answers are chosen to land on clean whole numbers every time, so checking your work stays simple.

These sets run from beginner to intermediate and suit students who know their basic times tables and are ready to put them to use. The second quiz adds a bit more challenge without changing the underlying method, and working only with answers that come out even lets you build the habit before facing remainders.

Did You Know?

Taking a fraction of a number is really just dividing and then multiplying. So 2/3 of 18 means splitting 18 into three equal parts of 6 and then taking two of them, which gives 12.

A quick check makes everything easier: see whether the bottom number divides evenly into the whole. When it does, as with 4/7 of 35, the division is clean and the rest falls into place.

How the Quizzes Work

Each quiz is short, about five minutes, and you can repeat both sets whenever you want the steps to feel routine. Practicing with whole-number answers lets you focus on the method instead of messy remainders, and this same skill underlies percentages, discounts, and tips, so it is well worth getting fast at. Choosing the right operation in the right order is the whole skill, and these sets give you room to lock it in. Ready to find any fraction of a number? Open the free interactive math quizzes and start practicing.