Question

2. Efectúe:
31/8 + 2 1/7+ 1 1/4​

Answer 1

Respuesta:

$\frac{31}{8} + 2 \frac{1}{7} + 1 \frac{1}{4} \\ \\ \frac{31}{8} + ( \frac{7 \times 2 + 1}{7} ) + ( \frac{4 \times 1 + 1}{4} ) \\ \\ \frac{31}{8} + \frac{15}{7} + \frac{5}{4} \\ \\ \frac{217 +120 + 70 }{56} = \frac{407}{56}$