Question

Вычислиете:1/4+4/7+9/28,1/5+3/10+7/20 /-дробная черта

Answer 1

$\frac{1}{4}+ \frac{4}{7}+ \frac{9}{28}= \frac{7+16+9}{28}= \frac{32}{28}= \frac{8}{7}=1 \frac{1}{7}$
$\frac{1}{5}+ \frac{3}{10}+ \frac{7}{20}= \frac{4+6+7}{20}= \frac{17}{20} = 0,85$

Answer 2

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