A) \[3\frac{2}{3}\]
B) \[\frac{422}{120}\]
C) \[3\frac{23}{60}\]
D) \[\frac{412}{120}\]
Correct Answer: B
Solution :
(b) To find the sum of \[\frac{3}{4}+\frac{7}{6}+1\frac{3}{5},\] find the L.C.M. of the denominators and then add them. L.C.M. of 4, 5 and 6 is 60. Then, \[\frac{3}{4}+\frac{7}{6}+\frac{8}{5}=\frac{45+70+96}{60}=\frac{211}{60}=\frac{211\times 2}{60\times 2}=\frac{422}{120}\]
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