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What is 4/7 + 8/15 =

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You need to bring them to a common denominator by multiplying the numbers below and above the line by the denominator of the other:


4*15/(7*15) and the other one will be
8*7/(15*7)

when we calculate we have

60/105 and the other number is 56/106.

now we can add them:
(60+56)/105=116/105= 1 and 11/105 or 1.104....
User Rauschen
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