Question

PLEASE ANSWER STEP BY STEP
1. Divide the sum of 3/7 and -5/14 by -1/2
2. Insert three rational number between 3/5 and 2/3
3.Evalute the following
1.(-5×2/15) - (-6×2/9)
2.(4/7 - -8/9) - (-13/7 + 17/9)
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Answer 1

Answer:

1) 3/7+(-5/14) ÷ -1/2

6-5/14 ÷ -1/2

1/14 ÷ -1/2

-1/7

2) LCM of 5 and 3 is 15

3/5 = 9/15 = 9*10/15*10 = 90/150

2/3 = 10/15 = 10*10/15*10 = 100/150

numbers between 90/150 and 100/140

= 91/150, 92/150, 93/150 , ....... , 99/150

3) 1. (-2/3) - (-12/9) = -2/3 + 12/9

= -6+12/9 = 6/9 = 2/3

2. (4/7+8/9) - (-13/7+17/9) = (36+56/63) - (-117+119/63)

= 92/63 + 236/63 = 328/63

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