You should have all taken home a sheet to help with your understanding of decimals, fractions and percentages. Please try to memorise the fraction and percentage equivalents.
50%
= ½ (Divide by 2)
Eg, 50% of
40 = 40÷2 = 20.
25%
= ¼ (Divide by 4) or halve and halve again.
Eg, 25% of
40 = 40 ÷4 = 10.
10%
= 1/10 (Divide by 10)
Eg, 10% of
40 = 40÷10 = 4
1% = 1/100
(Divide by 100)
Eg, 1% of 40
= 40÷100 = 0.4
To
convert fractions to decimals, divide the numerator by the denominator.
Eg, 2/5 = 2÷5 =0.4
To change
a decimal to a percentage, multiply it by 100, or move the decimal point two places to the RIGHT.
Eg, 0.75 x
100 = 75%
0.75 = 75%