Question

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Answer 1

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Answer:

6]

(a) 20

- 9/5 × 4/4 = - 36/20

(b) - 35

- 9/5 × - 7/-7 = 63/-35

(c) - 45

- 9/5 × - 9/-9 = 81/-45

(d) 30

- 9/5 × 6/6 = - 54/30

7]

(a) 14

- 7/11 × - 2/-2 = 14/-22

(b) - 35

- 7/11 × 5/5 = - 35/55

(c) 49

- 7/11 × - 7/-7 = 49/-77

(d) - 77

- 7/11 × 11/11 = - 77/121

8]

3/4 and 5/12

LCM of 4 and 12 = 12

9/12 and 5/12

(Multiply 3/4 with 3/3)

Hence denominators are same

9]

3/7 and 2/5

LCM of 3 and 2 = 6

6/14 and 6/15

(Multiply 3/7 with 2/2 and 2/5 with 3/3)

Hence numerator are same.