Выполните действия Номер 502. Created by kail73637666273. matematika-ru

Выполните действия Номер 502...

corn301

Ответ:

1)1/4

2)8/8(1)

3)2/12(1/6)

4)10/15(2/3)

5)4/10(2/5)

6)5/25(1/5)

Пошаговое объяснение:

1 votes Thanks 1

victoria200785

Ответ:

$\frac{3}{4} - \frac{1}{4} = \frac{3 - 1}{4} = \frac{2}{4} = \frac{1 \times 2}{2 \times 2} = \frac{1}{2}$

$\frac{7}{12} - \frac{5}{12} = \frac{7 - 5}{12} = \frac{2}{12} = \frac{1 \times 2}{6 \times 2 } = \frac{1}{6}$

$\frac{3}{10} + \frac{1}{10} = \frac{3 + 1}{10} = \frac{4}{10} = \frac{2 \times 2}{5 \times 2} = \frac{2}{5}$

$\frac{1}{30} + \frac{7}{30} = \frac{1 + 7}{30} = \frac{8}{30} = \frac{4 \times 2}{15 \times 2} = \frac{4}{15}$

$\frac{5}{8} + \frac{3}{8} = \frac{5 + 3}{8} = \frac{8}{8} = 1$

$\frac{8}{15} + \frac{2}{15} = \frac{8 + 2}{15} = \frac{10}{15} = \frac{2 \times 5}{3 \times 5} = \frac{2}{3}$

$\frac{17}{25} - \frac{12}{25} = \frac{17 - 12}{25} = \frac{5}{25} = \frac{1 \times 5}{5 \times 5} = \frac{1}{5}$

$\frac{28}{45} - \frac{13}{45} = \frac{28 - 13}{45} = \frac{15}{45} = \frac{1 \times 15}{3 \times 15} = \frac{1}{3}$

0 votes Thanks 0