Question

Solve: 1 /3 + 1/ 4 + 1/ 5

Answer 1

1 upon 3 + 1 upon 4 + 1 upon 5

for the answer first we have to take the LCM .

LCM of 3 4 5 is equal to 60.

therefore,

1 upon 3 into 20 upon 20 is equal to 20 upon 60 e

1 upon 4 into 15 upon 15 is equal to 15 upon 60

1 upon 5 into 12 upon 12 is equal to 12 upon 60

$\frac{20 + 15 + 12}{60}$

$\frac{47}{60}$

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Answer 2

Answer:

47/60 = 0.78333..........

Step-by-step explanation:

1/3 + 1/ 4 + 1/ 5

L.C.M. of 3,4,5 = 60

1/3*20/20 + 1/ 4*15/15 + 1/ 5*12/12

= 20/60 +15/60+12/60

= (20+15+12)/60

=47/60 =  0.783333333.........