Question

срочно даю 30 баллов

Answer 1

1) 83,2- 80 1/6 = 83 2/10 - 80 1/6 = 83 6/30 -

80 5/30-3 1/30

2) 3 1/30 * 3/13 = 91/30 * 3/13 = 7/10 = 0,7

во