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7. Share £
£

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Adding and subtracting fractions 2
Progress:
5
Work out ²/₅ − ¹/₆
4 × 9 = 36, so ³/₄ and ²/₉ can both be written with a denominator of 36. ³/₄ = ²⁷/₃₆ (multiplying top and bottom by 9) ²/₉ = ⁸/₃₆ (multiplying top and bottom by 4) So ³/₄ − ²/₉ = ²⁷/₃₆ − ⁸/₃₆ = ¹⁹/₃₆