Question

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

Answer 1

Step-by-step explanation:

Let the number be X

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