Question

$2 \frac{1}{7} \times 2.8 =$
$0.4 \times \frac{5}{9} =$
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Answer 1

Ответ:

2 1/7 * 2,8 = 15/7 * 2 4/5 = 15/7 * 14/5 = (3*2)/1*1 = 6 .

0,4 * 5/9 = 2/5 * 5/9 = 2/9 .

Answer 2

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