Question

(72,6-8 7/20):6,78+9,44*1/4

Answer 1

1) 72,6 - 8 7/20 = 72,6 - 8,35 = 64,25 
2) 64,25 : 6,78 = 257/4 : 339/50 = 6425/678 = 9 323/678
3) 9,44 * 1/4 = 9,44 * 0,25 = 2,36 = 2 9/25 
4) 9 323/678  + 2 9/25 = 9 8075/16950 + 2 6102/16950 = 11 14177/16950

Answer 2

Спасибо!