Verify the following: [2/5 + -3/4] + -7/9 =2/5 + [-3/4 + -7/9]
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Step-by-step explanation:
Taking L. H. S
[2/5+ -3/4] + -7/9
= [2/5 - 3/4] - 7/9
=[(8-15)/20] - 7/9
= -7/20 - 7/9 = (-63-140)/180 = -203/180
Taking R. H. S
2/5 + [-3/4 + -7/9]
= 2/5 + [-3/4 -7/9]
= 2/5 + (-27-28)/36
= 2/5 - 55/36
= 72-275/180 = -203/180
Hence, L. H. S = R. H. S
Answered by GauthMath.
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