Question

585. Амалдарды орындаңдар:
59
4
9 2
1)
3)
6 15. 12 15
203
57
14 25
2 5
5) 2
5 6
3
1
4
co / N
7 9 1 6
2)
+
18 14 37
32
4) 3-
4 5
3
6
25 27
6) 117 7
+
28 9
14 5
25 7​

Answer 1

Ответ:

$5)2 \frac{2}{5} \times \frac{5}{6} - \frac{3}{4} \times 1 \frac{2}{3} = \frac{12}{5} \times \frac{5}{6} - \frac{3}{4} \times \frac{3}{5} = 2 - \frac{1}{4} \times 5 = 2 - \frac{5}{4} = \frac{3}{4} = 0.75 \\ 6)1 \frac{17}{28} \times \frac{7}{9} + \frac{14}{25} \times \frac{5}{7} = \frac{45}{28} \times \frac{7}{9} + \frac{2}{5} = \frac{5}{4} + \frac{2}{5} = \frac{33}{20} = 1.65$