(5целых1/6-3.25)×4/23 помогитее

3,25 = 3 1/4

(5 1/6 - 3 1/4) * 4/23 = 1/3

1) 5 1/6 - 3 1/4 = 5 2/12 - 3 3/12 = 4 14/12 - 3 3/12 = 1 11/12

2) 1 11/12 * 4/23 = 23/12 * 4/23 = 4/12 = 1/3