Question

6. What should be added to 7* 3/5
to get 18?​

Answer 1

Answer:

x = 90/21

Step-by-step explanation:

let the required number be x.

therefore,

$7 \times \frac{3}{5} + x = 18 \\ \\ \frac{21}{5} + x = 18 \\ \\ x = 18 \times \frac{5}{21} \\ x = \frac{90}{21}$