Question

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

Answer 1

Answer:

Find the acute angle between the lines 3x−y=4 and 2x+y=3.

Step-by-step explanation:

Answer 2

Answer:

$let \: the \: required \: number \: be \: x \\ \frac{74}{15} + x = \frac{82}{5} \\ \frac{74}{15} \ + x = \frac{246}{15} \\ x = \frac{246 - 74}{15} \\ x = \frac{172}{15}$