Question

Выподните действие А) 5/8×4/15= Б)17×9/34= В)64/125×15/16= Г)6 1/9×1 2/7=

Answer 1

1) 5/8 * 4/15 = 20/(8*15) = 4/(8*3) = 1/6
2) 17 * 9/34 = 9/2
3) 64/125 * 15/16 = 4*3/25 = 12/25
4) 61/9 *12/7 = 61 * 4 / 3 * 7 = 244/21

Answer 2

А) 0,5
б) 4,5
Так диточка. Я не поняла это дроби??

Answer 3

А) 5/8 × 4/15 = (5 × 4) / (8 × 15) = 20 / 120 = 1/6

Б) 17 × 9/34 = 153/34

В) 64/125 × 15/16 = (64 × 15) / (125 × 16) = 960 / 2000 = 24 / 50 = 12 / 25

Г) 6 + 1/9 × 1 + 2/7 = 6 + 1/9 × 7/7 + 2/7 = 6 + 7/63 + 2/7 = 6 + 9/63 = 6 + 1/7 = 43/7