1.

Pls answer step by step​

Answer»

ANSWER:

1. 56/55, 2. 3280/1323

Step-by-step explanation:

1. (9/11) -( - 1 /5)

= 9*5-(-1*11)/11

= 45+11/55. (as - *- = +)

= 56/55

Therefore, 56/55 should be subtracted from 9/11 to get (-1/5).

** you can check the answer by subtracting 56/55 from 9/11 :

9/11 - 56/55

= 9*55 - 56*11/605

= 495 - 616 /605

= - 121/605

= - 0.2

= - 1/5

2.

= sum of 3/7 and 2/9

= 3*9 + 2*7/63

= 27+14/63

= 41/63

= product of 3/10 and 7/8

= 3*7/10*8

= 21/80

Now divide 41/63 and 21/80

= 41/63 ÷ 21/80

= 41*80/63*21

= 3280/1323 ( answer)



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