Question

What should be added to 1/2 +1/3 - 1/5 to get 4

Answer 1

number added

number added= 4- ( 1/2+1/3-1/5)

number added= 4- ( 1/2+1/3-1/5)= 4 - ( 15+10+6 ) / 30. LCM taken

number added= 4- ( 1/2+1/3-1/5)= 4 - ( 15+10+6 ) / 30. LCM taken= 4 - 31/30

number added= 4- ( 1/2+1/3-1/5)= 4 - ( 15+10+6 ) / 30. LCM taken= 4 - 31/30= (120 - 31) / 30

number added= 4- ( 1/2+1/3-1/5)= 4 - ( 15+10+6 ) / 30. LCM taken= 4 - 31/30= (120 - 31) / 30= 89/ 30

number added= 4- ( 1/2+1/3-1/5)= 4 - ( 15+10+6 ) / 30. LCM taken= 4 - 31/30= (120 - 31) / 30= 89/ 30= 2 integer 29/30 to be added