# Complete the following table by finding the sums:

+ -1/9 4/11 -5/6

2/3

-5/4 -39/44

-1/3

**Solution:**

We have to complete the table by finding the __sums__.

Let

Now, a = 2/3 + (-1/9)

a = 2/3 - 1/9

= [9(2) - 1(3)] / 3(9)

= (18 - 3)/27

= 15/27

a = 5/9

b = 2/3 + 4/11

= [2(11) + 4(3)] / 3(11)

= (22+12)/33

b = 34/33

c = 2/3 + (-5/6)

= 2/3 - 5/6

= [2(6) - 5(3)]/3(6)

= (12 - 15)/18

= -3/18

c = -1/6

d = -5/4 + (-1/9)

= -5/4 - 1/9

= -(5/4 + 1/9)

= -[5(9) + 1(4)]/4(9)

= -(45 + 4)/36

d = -49/36

e = -5/4 + (-5/6)

= -5/4 - 5/6

= -(5/4 + 5/6)

= -[5(6) + 4(5)]/4(6)

= -(30 + 20)/24

= -50/24

e = -25/12

f = -1/3 + (-1/9)

= -1/3 - 1/9

= -(1/3 + 1/9)

= -[1(9) + 1(3)]/3(9)

= -(9 + 3)/27

= -12/27

f = -4/9

g = -1/3 + 4/11

= [-1(11) + 3(4)]/3(11)

= (-11+12)/33

g = 1/33

h = -1/3 + (-5/6)

= -(1/3 + 5/6)

= -[1(6) + 3(5)]/3(6)

= -(6+15)/18

= -21/18

h = -7/6

**✦ Try This: **Find the reciprocal of the following: (4 × 8/9) - (3 × 2/9)

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 9

**NCERT Exemplar Class 7 Maths Chapter 8 Problem 87**

## Complete the following table by finding the sums: + -1/9 4/11 -5/6 2/3 -5/4 -39/44 -1/3

**Summary:**

The completed table by finding the sum is mentioned above

**☛ Related Questions:**

visual curriculum