вычислите: 30 13/30 + 0,2 - (3 19/33 + 2/3) : (17 5/6 - 17 15/22) + 1/3 * 9,5

Ответы 2

1) 3 19/33 + 2/3 = 3 19/33 + 22/33 = 3 41/33 = 4 8/332) 17 5/6 - 17 15/22 = 17 55/66 - 17 45/66 = 10/66 3) 1/3 • 9,5 = 1/3 • 95/10 = 95/30 = 3 1/6 4) 4 8/33 : 10/66 = 140/33 : 10/66 = 28 5) 30 13/30 + 0,2 - 28 + 3 1/6 = 30 13/30 + 3 5/30 - 27,8 = 33 18/30 - 27,8 = 33,6 - 27,8 = 5,8 Ответ 5,8
- Автор:
  javanojku
- 5 лет назад
- 0
$30\frac{13}{30}+0.2- (3\frac{19}{33}+ \frac{2}{3}): (17\frac{5}{6}- 17\frac{15}{22})+ \frac{1}{3}*9.5=$ $1) 3\frac{19}{33}+ \frac{2}{3}= \frac{118}{33}+ \frac{2}{3}= \frac{118}{33}+ \frac{22}{33}= \frac{140}{33}$ $2) 17\frac{5}{6}- 17\frac{15}{22}= \frac{107}{6}- \frac{389}{22}= \frac{2354}{132}- \frac{2334}{132}= \frac{20}{132}= \frac{5}{33}$ $3) \frac{140}{33}: \frac{33}{5}=28$ $4) \frac{1}{3}*9.5= \frac{1}{3}* \frac{95}{10}= \frac{95}{30}= \frac{19}{6}$ $5) 30\frac{13}{30}+0.2=30 \frac{13}{30}+ \frac{2}{10}= \frac{913}{30}+ \frac{2}{10}= \frac{913}{30}+ \frac{6}{30}= \frac{919}{30}$ $6) \frac{919}{30}-28= \frac{919}{30}- \frac{840}{30}= \frac{79}{30}$ $7) \frac{79}{30}+ \frac{19}{6}= \frac{79}{30}+ \frac{95}{30}= \frac{174}{30}=5.8$ Ответ: 5.8
- Автор:
  roberts
- 5 лет назад
- 0
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