Question

subtract the sum of 2/3 and -1/3 from the sum of 5/7 and -4/7

Answer 1

2/3 +(-1/3) -5/7+(-4/7)
2-1/3 -(5-4)/7
1/3 -1/7
7-3/21
4/21
is your answer

Answer 2

(5/7 - 4/7) -  (2/3 - 1/3)

⇒ (1/7) - (1/3)

⇒ (3 - 7)/21
 
⇒ -4/21 



i hope this will help you


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