Fractions of a number: word problems

Key points :

Understanding Fractions:

  • A fraction represents a part of a whole. It consists of two parts:
    • Numerator: The number of equal parts being considered.
    • Denominator: The total number of equal parts that make up the whole.

Finding Fractions of a Number:

  • To find a fraction of a number, multiply the number by the fraction.
    • Formula: (Fraction) × (Number) = Fraction of the Number
    • Example: To find ⅓ of 12, multiply ⅓ × 12 = 12 ÷ 3 = 4.

Learn with an example

😀Six-ninths of the 18 trees in the orchard are cherry trees.

How many cherry trees are in the orchard?

Find 6/9 of 18.
Divide 18 into 9 equal groups. Find how many are in each group.

18 ÷ 9 = 2

There are 2 in each group.

Find how many are in 6 groups.

6 × 2 = 12

There are 12 in 6 groups.

12 is 6/9 of 18.
12 cherry trees are in the orchard.

😀 Three-elevenths of the 11 students in the choir have brown hair.

How many students in the choir have brown hair?

Find 3/11 of 11.
Divide 11 into 11 equal groups. Find how many are in each group.

11 ÷ 11 = 1

There is 1 in each group.

Find how many are in 3 groups.

3 × 1 = 3

There are 3 in 3 groups.

3 is 3/11 of 11.
3 students in the choir have brown hair.

😀Of the 10 students on the playground, one-half want to play kickball.

How many students want to play kickball?

Find 1/2 of 10.

Divide 10 into 2 equal groups. Find how many are in each group.

10 ÷ 2 = 5
There are 5 in each group.

5 is 1/2 of 10

5 students want to play kickball.

let’s try some problems!