Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
МатематикаВопрос:
64. -\(\frac{2}{7}\) : \(-\frac{8}{21}\)
Ответ:
1. Divide: $$-\frac{2}{7} : (-\frac{8}{21}) = -\frac{2}{7} \cdot (-\frac{21}{8})$$.
2. Multiply: $$\frac{2 \cdot 21}{7 \cdot 8} = \frac{42}{56}$$.
3. Simplify: $$\frac{42}{56} = \frac{3}{4}$$.
2. Multiply: $$\frac{2 \cdot 21}{7 \cdot 8} = \frac{42}{56}$$.
3. Simplify: $$\frac{42}{56} = \frac{3}{4}$$.
Похожие
- 34. 15 \(\frac{1}{8}\) \(\cdot\) 1
- 36. 2 \(\frac{1}{2}\) \(\cdot\) 4 \(\frac{2}{15}\)
- 38. \(3 \frac{1}{2} - 2 \frac{3}{4}\) \(\cdot\) \(1 \frac{1}{6} - \frac{1}{12}\)
- 40. \(\frac{6}{7}\) : \(\frac{11}{18} - \frac{5}{12}\)
- 42. \(\frac{3}{12}\) : \(\frac{3}{4}\)
- 44. 8 : \(\frac{2}{7}\)
- 46. 0 : 5 \(\frac{1}{19}\)
- 48. \(5 \frac{1}{19} - \frac{1}{19}\) \(\cdot\) 6
- 50. 10 \(\frac{1}{3}\) : 2 \(\frac{1}{3}\)
- 52. \(\frac{2}{3}\) : \(\frac{6}{7}\) : \(\frac{4}{7}\)
- 54. \(\frac{3}{8}\) : \(\frac{1}{9}\) : \(\frac{5}{16}\)
- 56. \(\frac{13}{14}\) : \(\frac{7}{26}\) : \(\frac{3}{8}\)
- 58. \(2 \frac{2}{3} + 1 \frac{5}{6}\) : 1 \(\frac{1}{2}\)
- 60. -7 \(\frac{5}{12}\) - \(-1 \frac{5}{6}\)
- 62. \(\frac{8}{15}\) - 12 \(\frac{17}{30}\)
