Question

If a=2/3, b=3/4 and c= -1/5. Find the value of the expression (a-b)-c= a-(b-c)


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Answer 1

Answer:

2/5

Step-by-step explanation:

(a-b)-c=a-(b-c)

(2/3-3/4)-(-1/5) = 2/3-(3/4-(-1/5))

By cross multiplication of (2/3-3/4) we get,

-1/12+1/5 = 2/3-(3/4+1/5)

By cross multiplication of (3/4+1/5) we get,

-1/12+1/5 = 2/3-19/20

7/60 = -17/60

7/60 + 17/60 = 0

24/60

2/5