Question

решите пример пожалуйста

((55/9-7/18):35+(40/63-8/21):20+(83/90-41/50):2)*35

Answer 1

((55/9-7/18):35+(40/63-8/21):20+(83/90-41/50):2)*35 = 7 11/12,

1) 55/9 - 7/18 = 110/18 - 7/18 = 103/18 = 5 13/18,
2) 5 13/18 : 103/35 = 103/18 * 1/35 = 103/630,
3) 40/63 - 8/21 = 40/63 - 24/63 = 16/63,
4) 16/63 : 20 = 16/63 * 1/20 = 4/315,
5) 83/90 - 41/50 = 415/450 - 369/450 = 45/450 = 1/10,
6) 1/10 : 2 = 1/10 * 1/2 = 1/20,
7) 103/630 + 4/315 + 1/20 = 206/1260 + 16/1260 + 63/1260 =
    = 285/1260 = 19/84,
8) 19/84 * 35 = 95/12 = 7 11/12