Вычислите:
1)(3/4+1/5)*5/19
2)(12 целых 1/3-7целых 3/4)*6/11
3)(2целые 3/5-5/8):19целых 3/4
1)(3/4+1/5)*5/19
2)(12 целых 1/3-7целых 3/4)*6/11
3)(2целые 3/5-5/8):19целых 3/4
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Answers & Comments
2)(12 4/12-7 9/12)×6/11=(11 16/12-7 9/12)×6/11=4 7/12×6/11=2,5
3)(2 24/40-25/40):19 3/4=(1 64/40-25/40):19 3/4=1 39/40:19 3/4=79/40:79/4=0,1