1.

What number should be added to (1/2+1/3+1/5) to get 3 ? (full explane)​

Answer»

Step-by-step explanation:

Let the NUMBER be x

then,

( \frac{1}{2} + \frac{1}{3} + \frac{1}{5} ) + x = 3 \\ ( \frac{15 + 10 + 6}{30} ) + x = 3 \\ ( \frac{31}{30} ) + x = 3 \\ x = 3 - \frac{31}{30} \\ x = \frac{90 - 31}{30} \\ x = \frac{59}{30}

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