Вычислите: а)(3-3\7):(1\14+1\4)

Question

Вычислите:
а)(3-3\7):(1\14+1\4)

Answer 1

(3 - 3/7) : (1/14 + 1/4) = 8
1) 3 - 3/7 = 2 7/7 - 3/7 = 2 4/7
2) 1/14 + 1/4 = 2/28 + 7/28 = 9/28
3) 2 4/7 : 9/28 = 18/7 * 28/9 = 2 * 4 = 8