7. Using appropriate property find the value of: -2/3 X 5/6 - 2/3 X 4/7
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Answer:
2/3×5/6+(-2/3)×4/7
= -2/3×(5/6+4/7)
= -2/3×(35+24/42)
= -2/3×59/42
= -118/126
= -59/63
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