Question

(3 целых 19/22+х):4 целых 1/5=5

Answer 1

3 1922 + X = 5 * 4 15
3 1922 + X = 5 * 4.2 
3 1922 + X = 21 
X = 21 - 3 1922 = 20 2222 - 3 1922 = 17 целых 322