(1 целая 4/7 + 5 целых 8/21) * 29.4

Question

(1 целая 4/7 + 5 целых 8/21) * 29.4

Answer 1

(1(4/7)+5(8/21))·29,4 = (1(12/21)+5(8/21))·29(2/5) = 6(20/21)·29(2/5) = 146·147/21·5 = 204,4

Answer 2

1)1 4/7+5 8/21=1 12/21+5 8/21=6 20/21
2)6 20/21*29 2/5=14 6/21*147/5=146*7/5=204,4