Page 149 - Start Up Mathematics_5

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Percentage

Percentage is a method of expressing a number as a Remember
fraction of 100. The symbol of percent is %.
When we say percent we
The word percent comes from a Latin word per centum. mean per 100.

1 1 1

25

50

100 100 100
50% means 50 per 100. So, 25% means 25 per 100. So, 100% means 100 per 100
we say 50% of this grid is we say 25% of this grid is which also means all. So,
coloured. coloured. we say 100% of this grid is
coloured.

Converting Percentage to Fraction

To convert percentage to fraction, remove the % sign and multiply the number of the

percentage by 1 . Reduce the fraction if needed.
100
Example 1: Convert 29% to fraction. Quick Tip

Solution: 29% = 29 × 1 = 29 % = 1
100 100 100
Example 2: Convert 85% to fraction.

Solution: 85% = 85 × 1 = 85 = 17
100 100 20
Converting Percentage to Decimal

To convert percentage to decimal, remove the % sign and Quick Tip
divide the number by 100 or multiply by 1 .
100 To divide by 100, shift
Example 3: Convert 47% to decimal. decimal point 2 places to
the left.
Solution: 47% = 47 × 1 = 47 = 0.47
100 100

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