Question

Помогите умоляю мучаюсь​

Answer 1

Ответ:

$(\frac{11}{24} + \frac{1}{6} ) \times 1 \frac{3}{5 } = ( \frac{11}{24} + \frac{4}{24} ) \times 1 \frac{3}{5} = \frac{15}{24} \times \frac{8}{5} = \frac{15 \times 8}{24 \times 5} = \frac{3}{3} = 1$

$(20 \frac{1}{2} + 12 \frac{3}{5} ) \times \frac{1}{10} = (20.5 + 12.6) \times 0.1 = 33.1 \times 0.1 = 3.31$

$(8 \frac{1}{4} - 2 \frac{5}{16} ) \times \frac{4}{25} = (8 \frac{4}{16} - 2 \frac{5}{16} ) \times \frac{4}{25} = 5 \frac{15}{16} \times \frac{4}{25} = \frac{95}{16} \times \frac{4}{25} = \frac{95 \times 4}{16 \times 25} = \frac{19}{20} = 0.45$

Пошаговое объяснение:

Если все правильно, можно лучший ответ?

Answer 2

$(\frac{11}{24}+\frac{1}{6})*1\frac{3}{5}=(\frac{11}{24}+\frac{4}{24})*1\frac{3}{5}=\frac{15}{24}*\frac{8}{5}=\frac{3}{3}=1\\\\\\(20\frac{1}{2}+12\frac{3}{5})*\frac{1}{10}=(20+12+\frac{5}{10}+\frac{6}{10})*\frac{1}{10}=(32+\frac{11}{10})*\frac{1}{10}=\\\\=(32+1\frac{1}{10})*\frac{1}{10}=33\frac{1}{10}*\frac{1}{10}=\frac{331}{100}=3\frac{31}{100}\; \; (=3,31)$

$(8\frac{1}{4}-2\frac{5}{16})*\frac{4}{25}=(\frac{33}{4}-\frac{37}{16})*\frac{4}{25}=\frac{33}{4}*\frac{4}{25}-\frac{37}{16}*\frac{4}{25}=\frac{33}{25}-\frac{37}{100}=\\\\=\frac{132}{100}-\frac{37}{100}=\frac{95}{100}=\frac{19}{20}$