(53/9 -47/12) ×43/5+ 47/6÷47/3
(53/9 -47/12) ×43/5+ 47/6÷47/3= 1) 53/9 - 47/12 = 71/36 2) 71/36 × 43/5 = 3053/180 = 16 целых 173/180 3) 47/6 ÷ 47/3 = 47/6 ×3/47 = 3/6 = 1/2 4) 16 целых 173/180 + 1/2 = 16 целых 173/180 + 90/180 = 16 целых 263/180 = 17 целых 83/180