Question

Sumas de fracciones
2/3 + 9/3 =
5/3 + 2/4 =
5/20 + 5/4 =

Answer 1

- Suma de fracciones:

❀ Primera suma:

$\frac{2}{3} + \frac{9}{3} = \\ \\ \frac{2 + 9}{3} = \\ \\ \frac{11}{3} = 3 \frac{2}{3}$

❀ Segunda suma:

$\frac{5}{3} + \frac{2}{4} = \\ \\ \frac{12 \div 3 \times 5 + 12 \div 4 \times 2}{12} = \\ \\ \frac{20 + 6}{12} = \\ \\ \frac{26}{12} = \frac{13}{6} = 2 \frac{1}{6}$

❀ Tercera suma:

$\frac{5}{20} + \frac{5}{4} = \\ \\ \frac{20 \div 20 \times 5 + 20 \div 4 \times 5}{20} = \\ \\ \frac{5 + 25}{20} = \\ \\ \frac{30}{20} = \frac{3}{2} = 1 \frac{1}{2}$