43/10*3/43+58/5*225/100:2,75

43/10 · 3/43 + 58/5 · 225/100 : 2,75 = 9 87/110

1) 43/10 · 3/43 = 3/10

2) 58/5 · 225/100 = (29·45)/(1·50) = 1305/50

3) 1305/50 : 2,75 = 1305/50 : 275/100 = 1305/50 · 100/275 = (261·2)/(1·55) = 522/55 = 9 27/55

4) 3/10 + 9 27/55 = 33/110 + 9 54/110 = 9 87/110

ответ: 9 целых 87/110.