решите примеры,пожалуйста!
1) (0,5:1,25-(-7\5:1 4/7) - 3\11)
2) -1,5+1\4):18 1/3
1) (0,5:1,25-(-7\5:1 4/7) - 3\11)
2) -1,5+1\4):18 1/3
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А) 0,5 : 1,25 - (-7/5 : 1 4/7) - 3/11 = 1 1/551) - 7/5 : 1 4/7 = - 7/5 : 11/7 = - 7/5 * 7/11 = - 49/55
2) 0,5 : 1,25 = 0,4
3) 0,4 - (- 49/55) = 2/5 + 49/55 = 22/55 + 49/55 = 71/55 = 1 16/55
4) 1 16/55 - 3/11 = 1 16/55 - 15/55 = 1 1/55
б) (-1,5 + 1/4) : 18 1/3 = - 3/44
1) - 1,5 + 1/4 = - 1 1/2 + 1/4 = - 1 2/4 + 1/4 = - 1 1/4
2) - 1 1/4 : 18 1/3 = - 5/4 : 55/3 = - 5/4 * 3/55 = - (1*3)/(4*11) = - 3/44