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the masses of John,Gregory and Ethan are 38 1 out of 5,41 1 out of 3 and 52 1 out of 4.find the total mass of the three children.give your answer as a mixed number in it's simplest form.

 Mar 21, 2020
edited by Guest  Mar 21, 2020
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I THINK this what you are asking:    38 1/5   +    54   1/3    +    52  1/4

 

add the red parts  = 144

now the fractions.....    the lcm of  5 3 and 4 is 60         1/5 = 12/60    1/3 = 20/60   1/4 = 15/60

         added together =  47/60

 

then    144 + 47/60 =     144   47/60    (kg ?)

 Mar 21, 2020
edited by ElectricPavlov  Mar 21, 2020

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