4 2/3 + 1/4 × 1 7/9 - 1/2 =

Question

4 2/3 + 1/4 × 1 7/9 - 1/2 =

Answer 1

4 2/3 + 1/4 * 1 7/9 - 1/2 = 4 целых 11/18

1) 1/4 * 1 7/9 = 1/4 * 16/9 = (1*4)/(1*9) = 4/9
2) 4 2/3 + 4/9 = 4 6/9 + 4/9 = 4 10/9 = 5 1/9
3) 5 1/9 - 1/2 = 5 2/18 - 9/18 = 4 20/18 - 9/18 = 4 11/18