Question

426.Өрнектердін мәнін табындар
7/12+7/20. 2)3/8+1/18. 3)1/12+11/14. 4)2/15+7/12. 5)9/14-5/12. 6)19/75+7/50
ПОМОГИТЕ ПЖ ДАМ 21 БАЛОВ
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Answer 1

Ответ:

1. 5\4 2.2/6 3.8/2 4.7/1 5.7/3 6.3/9

Answer 2

Ответ:

$\frac{7}{12} + \frac{7}{20} = \frac{35 + 21}{60} = \frac{56}{60} = \frac{14}{15}$

$\frac{3}{8} + \frac{1}{18} = \frac{27 + 4}{72} = \frac{31}{72}$

$\frac{1}{12} + \frac{11}{14} = \frac{7 + 66}{84} = \frac{73}{84}$

$\frac{2}{15} + \frac{7}{12} = \frac{8 + 35}{60} = \frac{43}{60}$

$\frac{19}{75} + \frac{7}{50} = \frac{38 + 21}{150} = \frac{59}{150}$

$\frac{9}{14} - \frac{5}{12} = \frac{108 - 85}{204} = \frac{23}{204}$