Question

Aplica la jerarquía de operaciones para resolver los siguientes ejercicios.

1. 3/7 + 2/4.5/3=

2. 5/6-1/8÷ 5/2=

3. 5/7 * 6/5 + 9/12 * 5/6=

4. 5/6 * 3/5 + 3/15÷5/3=

17 pnt

Answer 1

$\frac{3}{7} + \frac{2}{4} \times \frac{5}{3} = \frac{3}{7} + \frac{5}{6} = \frac{18 + 35}{42} = \frac{53}{42}$
$\frac{5}{6} - \frac{1}{8} \div \frac{5}{2} = \frac{5}{6} - \frac{1}{8} \times \frac{2}{5} = \frac{5}{6} - \frac{1}{20} = \frac{100 - 6}{120} = \frac{94}{20} = \frac{47}{10}$
$\frac{5}{7} \times \frac{6}{5} + \frac{9}{12} \times \frac{5}{6} = \frac{6}{7} + \frac{5}{8} = \frac{48 + 35}{56} = \frac{83}{56}$
$\frac{5}{6} \times \frac{3}{5} + \frac{3}{15} \div \frac{5}{3} = \frac{1}{2} + \frac{3}{15} \times \frac{3}{5} = \frac{1}{2} + \frac{9}{75} = \frac{75 + 18}{150} = \frac{93}{150}$