Question

what should be add to 7 3/5 to get 18

Answer 1

Answer:

$10\frac{2}{5}$

Step-by-step explanation:

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

transformation : $7\frac{3}{5} = \frac{(5*7) + 3}{5} = \frac{38}{5}$

$\frac{38}{5} + x = 18\\\\x = 18 - \frac{38}{5} = \frac{(5*18) - 38}{5} = \frac{52}{5}$

$\frac{52}{5} = 10\frac{2}{5}$

Answer 2

Answer:

$10\frac{2}{5}$

Step-by-step explanation:

What should be add to $7\frac{3}{5}$  to get $18$ ?

$18-7\frac{3}{5}=\\ \\=17\frac{5}{5}-7\frac{3}{5}\\\\\\=(17-7)+(\frac{5}{5}- \frac{3}{5})\\ \\=10+\frac{2}{5}\\ \\=10\frac{2}{5}$