What fraction of $4/7$ must be added to itself to make the sum 1$1/14$ ? Options: A . &nbsp$15/14$ B . &nbsp$4/7$ C . &nbsp$1/2$ D . &nbsp$7/8$

What fraction of $4/7$ must be added to itself to make the sum 1$1/14$ ?

Question

What fraction of $4/7$ must be added to itself to make the sum 1$1/14$ ?

Options:

A . $15/14$

B . $4/7$

C . $1/2$

D . $7/8$

Answer: Option D
Answer: (d)Let the fraction be x.$\text"4x"/7 +4/7 = 15/14$ $\text"4x"/7 = 15/14 – 4/7 = {15 - 8}/14 = 1/2$ x = $1/2 × 7/4 = 7/8$

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