Math, asked by Purvikapanchloria, 1 month ago

please help me i am in class 8 and I am not able to solve please help and it will be a pleasure if u help me out thank u​​

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Answered by samaira173
0

3. a) 23/15

b) -1/13

c)-55/18

d)-7/4

4. a) 6/13

b) 8

c) -16/31

d) -2/3

5. a= 2/3

b=-3/5

LHS

a+b = 2/3 + -3/5

=10/15 + -9/15

=10+-9/15

=10-9/15

=1/15

RHS

b+a = -3/5 + 2/3

=-9/15 + 10/15

=-9+10/15

=10-9/15

=1/15

As LHS=RHS, hence proved

6. a=5/12

b=1/2

c=7/12

LHS

(a+b)+c = (5/12+1/2)+7/12

=(5/12+6/12)+7/12

=(5+6/12)+7/12

=11/12+7/12

=11+7/12

=18/12

=3/2

RHS

a+(b+c) = 5/12+(1/2+7/12)

=5/12+(6/12+7/12)

=5/12+(6+7/12)

=5/12+13/12

=5+13/12

=18/12

=3/2

As LHS=RHS, hence proved.

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