Fractions and Percentages

To convert the fraction $\frac{3}{10}$ to a percentage, multiply by 100: $\frac{3}{10}\times 100=30\%$.

To convert 20% to a fraction, write it as $\frac{20}{100}$ and simplify. This becomes $\frac{1}{5}$.

Divide the number of science teachers by the total number of teachers and multiply by 100: $(12÷30)\times 100=40\%$.

Divide the number of games won by the total games played and multiply by 100: $(27÷45)\times 100=60\%$.

Divide the number of items on sale by the total number of items sold and multiply by 100: $(96÷120)\times 100=80\%$.

To convert 120% to a fraction, write it as $\frac{120}{100}$ and simplify. This becomes $\frac{6}{5}$.