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.

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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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Evelyn 3 weeks 2021-08-20T10:51:20+00:00 1 Answer 0 views 0

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    2021-08-20T10:52:50+00:00

    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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