5/7+-3/8+-4/7+9/8 varify propety
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-2/3 * 3/5 – 3/5 * 1/6 + 5/2 [Using associative property]. = 3/5 * (-2/3 ... (-4 -7)/28 [LCM (7, 4) = 28]. = -11/28 ... Verify that -(-x) = x for: (i) x = 11/ 15 (ii) x ... Therefore, 8/9 * (-1) = 8/9 * -9/8 = -1.
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