Verify -2/5 + (3/5 + 1/2) = (-2/5 + 3/5) + 1/2
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LHS:
=-2/5 + (3×2/5×2 + 1×5/2×5) taking LCM
=-2/5 + (6+5/10)
=-2/5 + 11/10
=-2×2/5×2 + 11×1/10×1 taking LCM
=-4/10 + 11/10
=7/10
RHS:
=(-2/5 + 3/5) + 1/2
=1/5 + 1/2
=1×2/5×2 + 1×5/2×5 taking LCM
=2/10 + 5/10
=7/10
LHS=RHS
Hence verified
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