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Solve:
(i) 2 − 3/5
(ii) 4 + 7/8
(iii) 3/5 + 2/7
(i) 2 − 3/5 = 10/5 − 3/5 = 7/5 = 1 2/5
(ii) 4 + 7/8 = 32/8 + 7/8 = 39/8 = 4 7/8
(iii) 3/5 + 2/7 = (3 × 7 + 2 × 5)/35 = (21 + 10)/35 = 31/35