Question

what should be added to 7 4/15 to get 8 2/5?​

Answer 1

7 4/15 - 8 2/5

109/15 - 42/5

109/15 - 126/15

17/15

1 2/15

Answer 2

$1\frac{2}{15}$ should be added to 7 4/15 to get 8 2/5

Solution:

Given that,

We have to find what should be added to 7 4/15 to get 8 2/5

Let "x" be the number that should be added

Then according to question,

$7\frac{4}{15} + x = 8 \frac{2}{5} \\\\\frac{109}{15} + x = \frac{42}{5} \\\\x = \frac{42}{5} - \frac{109}{15} \\\\x = \frac{126 - 109 }{15} \\\\x = \frac{17}{15}\\\\x = 1\frac{2}{15}$

Thus $1\frac{2}{15}$ should be added to 7 4/15 to get 8 2/5

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