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Pls answer me this all question​

Pls answer me this all question​-example-1

1 Answer

4 votes

Answer:

a.
5 (21)/(40)

b.
(1)/(42)

Explanation:


a. \: 12 (2)/(5) - 6 (7)/(8)


(62)/(5) - (55)/(8)


(62)/(8) * (8)/(8) - (55)/(8) * (5)/(5)


(62 * 8 - 55 * 5)/(40)


(221)/(40)


5 (21)/(40)


b. \: (3)/(14) - (4)/(21)


(3)/(14) * (3)/(3) - (4)/(21) * (2)/(2)


(3 * 3)/(42) - (4 * 2)/(42)


(1)/(42)

Hope it is helpful....

User Michael Goerz
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