Question

Найдите значение выражений

Answer 1

16)
$\frac{5}{16} \div ( - \frac{25}{4} ) + 2.05 = - \frac{5}{16} \times \frac{4}{25} + \frac{205}{100} = - \frac{1 \times 1}{4 \times 5} + \frac{41}{20} = - \frac{1}{20} + \frac{41}{20} = \frac{40}{20} = 2$
17)
$\frac{1}{7} \div ( - \frac{5}{21} ) + 4.6 = - \frac{1}{7} \times \frac{21}{5} + \frac{46}{10} = - \frac{1 \times 3}{1 \times 5} + \frac{23}{5} = - \frac{3}{5} + \frac{23}{5} = \frac{20}{5} = 4$
18)
$\frac{2}{3} \div ( - \frac{10}{9} ) + 0.6 = - \frac{2}{3} \times \frac{9}{10} + \frac{6}{10} = - \frac{1 \times 3}{1 \times 5} + \frac{3}{5} = - \frac{3}{5} + \frac{3}{5} = 0$
19)
$\frac{4}{11} \div ( - \frac{16}{33} ) + 5.75 = - \frac{4}{11} \times \frac{33}{16} + 5 \frac{3}{4} = - \frac{1 \times 3}{1 \times 4} + \frac{23}{4} = - \frac{3}{4} + \frac{23}{4} = \frac{20}{4} = 5$

Answer 2

16▪▪▪2380

$\frac{5}{16} \div ( - \frac{25}{4} ) + 2.05 = - \frac{5 \times 4}{16 \times 25} + 2.05 = - \frac{1}{4 \times 5} + 2.05 = - \frac{1}{20} + 2.05 = 2.05 - 0.05 = 2$

17▪▪▪2381

$\frac{1}{7} \div ( - \frac{5}{21} ) + 4.6 = - \frac{1 \times 21}{7 \times 5} + 4.6 = - \frac{3}{5} + 4.6 = 4.6 - 0.6 = 4$

18▪▪▪2382

$\frac{2}{3} \div ( - \frac{10}{9} ) + 0.6 = - \frac{2 \times 9}{3 \times 10} + 0.6 = 0.6 - \frac{3}{5} = 0.6 - 0.6 = 0$

19▪▪▪2383

$\frac{4}{11} \div ( - \frac{16}{33} ) + 5.75 = - \frac{4 \times 33}{11 \times 16} + 5.75 = - \frac{3}{4} + 5 \frac{75}{100} = 5 \frac{3}{4} - \frac{3}{4} = 5$