Equivalent 10ths and 100ths | Year 5 Maths Resources

What you need to know

Things to remember:

  • To turn 100ths into 10ths, we divide the top and bottom of the fraction by 10.
  • To turn 10ths into 100ths, we multiply the top and bottom of the fraction by 10.

Let’s just remind ourselves of what the numbers in a fraction are called:

\frac{5}{100} = \frac{\leftarrow Numerator}{\leftarrow Denominator}

The easiest way to recognise equivalent fractions is to start with 10ths and turn them into 100ths. Remember, 10\times10=100 and that we can multiply the top and bottom of a fraction by the same number.

\frac{1}{10} = \frac{1\times10}{10\times10}=\frac{10}{100}

\frac{2}{10} = \frac{2\times10}{10\times10}=\frac{20}{100}

\frac{3}{10} = \frac{3\times10}{10\times10}=\frac{30}{100}

\frac{4}{10} = \frac{4\times10}{10\times10}=\frac{40}{100}

\frac{5}{10} = \frac{5\times10}{10\times10}=\frac{50}{100}

\frac{6}{10} = \frac{6\times10}{10\times10}=\frac{60}{100}

\frac{7}{10} = \frac{7\times10}{10\times10}=\frac{70}{100}

\frac{8}{10} = \frac{8\times10}{10\times10}=\frac{80}{100}

\frac{9}{10} = \frac{9\times10}{10\times10}=\frac{90}{100}

\frac{10}{10} = \frac{10\times10}{10\times10}=\frac{100}{100}

Or, more simply:

\frac{1}{10} = \frac{10}{100}

\frac{2}{10} = \frac{20}{100}

\frac{3}{10} = \frac{30}{100}

\frac{4}{10} = \frac{40}{100}

\frac{5}{10} = \frac{50}{100}

\frac{6}{10} =\frac{60}{100}

\frac{7}{10} = \frac{70}{100}

\frac{8}{10} = \frac{80}{100}

\frac{9}{10} = \frac{90}{100}

\frac{10}{10} = \frac{100}{100}

Times Table Flash Cards

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Example Questions

\frac{5}{10} = \frac{50}{100}

\frac{80}{100} = \frac{8}{10}

KS2 SATs Flash Cards

KS2 SATs Flash Cards

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  • All of the major KS2 Maths SATs topics covered
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