Question

Evaluate :
a) -2/3 - 3/5 - (-7/10)
b) -4/5 - 9/2 - 3/10
c) 2/5 + (-3/4) - (-5/2)​

Answer 1

Step-by-step explanation:

I think it's right , if yesand it will be helpful

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Answer 2

Answer:

here is your answer mate,

(a) -2/3 - 3/5 - (-7/10)

-2/3 - 3/5 + 7/10

taking the LCM of 3, 5 and 10

LCM of 3, 5 and 10 is 30

[-2(10) - 3(6) + 7(3)] / 30

[-20 - 18 + 21] / 30

-17/30

(b) -4/5 - 9/2 - 3/10

taking the LCM of 5, 2 and 10

LCM of 5, 2 and 10 is 10

[-4(2) - 9(5) - 3] / 10

[-8 - 18 - 3] / 10

-29/10

-2.9

(c) 2/5 + (-3/4) - (-5/2)

2/5 - 3/4 + 5/2

taking LCM of 4, 5 and 2

LCM of 4, 5 and 2 is 20

[2(4) - 3(5) +5(10)] / 20

[8 - 15 + 50] / 20

43/20

21.5/10

2.15

hope it helps you buddy

please mark as brainliest :-)