98. Вычислите. 17 a) 4 3 ララ 13 и): 33 9 1 (9 -:-e) 7 3 : 79 11 3 S K) 355 4 1 B) 7.2 2 10 -:-( 3 92 ): 93 9:27 こ 3.2 3 1 63 3)-:- 43 105 M) 40: 497 99. Вычислите. 3 3 a)-:- 4 4 8 1 ж) 0:24 13 33 7 7 6) 0: д) 1:9 3) 1: 8 5 6.6 в) 1: 6:e) 22 22 9 )11:1 44

98. Вычислите.

а) \(\frac{1}{2} : \frac{4}{7} = \frac{1}{2} \cdot \frac{7}{4} = \frac{7}{8}\)

б) \(\frac{3}{7} : \frac{3}{9} = \frac{3}{7} \cdot \frac{9}{3} = \frac{9}{7} = 1\frac{2}{7}\)

в) \(\frac{4}{9} : \frac{1}{2} = \frac{4}{9} \cdot \frac{2}{1} = \frac{8}{9}\)

г) \(\frac{3}{2} : \frac{3}{2} = \frac{3}{2} \cdot \frac{2}{3} = 1\)

д) \(\frac{4}{7} : \frac{4}{3} = \frac{4}{7} \cdot \frac{3}{4} = \frac{3}{7}\)

е) \(\frac{9}{11} : \frac{1}{3} = \frac{9}{11} \cdot \frac{3}{1} = \frac{27}{11} = 2\frac{5}{11}\)

ж) \(\frac{7}{9} : \frac{2}{3} = \frac{7}{9} \cdot \frac{3}{2} = \frac{7}{3 \cdot 3} \cdot \frac{3}{2} = \frac{7}{6} = 1\frac{1}{6}\)

з) \(\frac{3}{9} : \frac{1}{3} = \frac{3}{9} \cdot \frac{3}{1} = \frac{1}{3} \cdot \frac{3}{1} = 1\)

и) \(\frac{1}{5} : \frac{3}{25} = \frac{1}{5} \cdot \frac{25}{3} = \frac{25}{15} = \frac{5}{3} = 1\frac{2}{3}\)

к) \(\frac{7}{35} : \frac{3}{5} = \frac{7}{35} \cdot \frac{5}{3} = \frac{1}{7} \cdot \frac{5}{3} = \frac{5}{21}\)

л) \(\frac{2}{9} : \frac{10}{27} = \frac{2}{9} \cdot \frac{27}{10} = \frac{1}{1} \cdot \frac{3}{5} = \frac{3}{5}\)

м) \(\frac{6}{49} : \frac{3}{7} = \frac{6}{49} \cdot \frac{7}{3} = \frac{6}{7 \cdot 7} \cdot \frac{7}{3} = \frac{2}{7}\)

99. Вычислите.

а) \(\frac{3}{4} : \frac{3}{4} = \frac{3}{4} \cdot \frac{4}{3} = 1\)

б) \(0 : \frac{7}{8} = 0\)

в) \(1 : \frac{5}{9} = 1 \cdot \frac{9}{5} = \frac{9}{5} = 1\frac{4}{5}\)

г) \(\frac{3}{4} : \frac{2}{13} = \frac{3}{4} \cdot \frac{13}{2} = \frac{39}{8} = 4\frac{7}{8}\)

д) \(1 : \frac{1}{9} = 1 \cdot \frac{9}{1} = 9\)

е) \(\frac{6}{22} : \frac{6}{22} = 1\)

ж) \(0 : \frac{24}{33} = 0\)

з) \(1 : \frac{7}{25} = 1 \cdot \frac{25}{7} = \frac{25}{7} = 3\frac{4}{7}\)

и) \(1 : \frac{9}{11} = 1 \cdot \frac{11}{9} = \frac{11}{9} = 1\frac{2}{9}\)