Question

resolver las siguientes operaciones luego simplifica si es necesario
3/4 + 7/4
5/9 dividido 4/7
3/5 - 1/10
8/5 + 7/5 + 4/5
6/3 + 4/9 - 2/6
3/12 - 5/12
7/8 * 3/5

Answer 1

Respuesta:

1.

$\frac{3}{4} + \frac{7}{4} = \frac{10}{4} = \frac{5}{2}$

repuesta simplificada 5/2

2.

$\frac{5}{9} \div \frac{4}{7} = \frac{35}{36}$

3.

$\frac{3}{5} - \frac{1}{10} = \frac{30 - 5}{50} = \frac{25}{50} = \frac{1}{2}$

respuesta simplificada 1/2

4.

$\frac{8}{5} + \frac{7}{5} + \frac{4}{5} = \frac{19}{5}$

5.

$\frac{6}{3} + \frac{4}{9} - \frac{2}{6} = \\ ( \frac{6}{3} + \frac{4}{9}) = \frac{54 + 12}{18} = \frac{66}{18} = \frac{11}{3} \\ \frac{11}{3} - \frac{2}{6} = \frac{66 - 6}{18} = \frac{60}{18} = \frac{10}{6} = \frac{5}{3}$

6.

$\frac{3}{12} - \frac{5}{12} = \frac{2}{12} = \frac{1}{6}$

7.

$\frac{7}{8} \times \frac{3}{5} = \frac{21}{40}$