Question

1) 12:3 8 1 9 4 16
$12 \div 3 \frac{3}{8} - 1 \frac{1}{4} \div \frac{9}{16}$
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Answer 1

12:27/8-5/4*16/9=4*8/9-20/9=32/9-20/9=4/3
ответ:4/3

/ это дробь

Answer 2

Пошаговое объяснение:

1) 12 : 3 3/8 = 12 : 27/8 = 12 * 8/27 = 4 * 8/9 = 32/9 = 3 5/9

2) 1 1/4 : 9/16 = 5/4 * 16/9 = 5/1 * 4/9 = 20/9 = 2 2/9

3) 3 5/9 - 2 2/9 = 1 3/9 = 1 1/3