4,3-7/12=4.3 - 7 12 = 4 3 10 - 7 12 = 3 + 4·10 10 - 7 12 = 43 10 - 7 12 = 43·6 10·6 - 7·5 12·5 = 258 60 - 35 60 = 258 - 35 60 = 223 60 = 3·60 + 43 60 = 3 43 60 ≈ 3.71
5/6+ 2/7=5 6 + 2 7 = 5 · 7 6 · 7 + 2 · 6 7 · 6 = 35 42 + 12 42 = 35 + 12 42 = 47 42 = 1·42 + 5 42 = 1 5 42 ≈ 1.11
11/-3/5=11 - 3 5 = 11·5 5 - 3 5 = 55 5 - 3 5 = 55 - 3 5 = 52 5 = 10·5 + 2 5 = 10 2 5 = 10.4
