Question

what shoud be added to(1/2+1/3+1/4) to get2
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Answer 1

Step-by-step explanation:

considering that x=(1/2+1/3+1/5)

now suppose Y is the number that should be added to x to get 4

i.e.

X+Y=4

Y=4-X

Now calculate the value of X

LCM of 2,3 and5

is =2x3x5=30

X= ((LCM/2)+(LCM/3)+(LCM/5))/LCM

X=( 15+10+6)/30

X=31/30

therefore The number Y is

Y=4–(31/30), LCM of 30 and 1 is 30.

Y=((LCM*4)-(LCM*31/30))/30

Y=(120–31)/30

Y=89/30 Ans.

Answer 2

1/2+1/3+1/4=13/12

13/12+x=1

x=1-13/12

x=-1/12