Question

Verify that (a+b)+c.=a+(b+c) by taking (i) a = -2 , b = -2/3 , c = -3/4

Answer 1

1) (a+b)+c

(-2+ -2/3) + -3/4

=(-2/1 - 2/3) - 3/4

BODMAS

B for Brackets first

Finding the LCM,

= (-6/3 -2/3) - 3/4

= (-8/3) - 3/4

=-8/3 - 3/4

LCM again,

= -32/12 -9/12

=-41/12

2) a+(b+c)

-2+ (-2/3 + -3/4)

= -2/1 + (-2/3 - 3/4)

BODMAS

B for Brackets first

Finding the LCM,

= -2/1 + (-8/12 - 9/12)

= -2/1 + ( -17/12)

= -2/1 -17/12

LCM again,

= -24/12 - 17/12

=41/12

There you go fam

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