Question

efectuar: 2/5 + 3/4-6/5+3/8​

Answer 1

paso 1
2/5-6/5=-4/5
paso 2
mínimo común múltiplo 5, 4,8: 40
-32/40 +30/40+15/40
paso3
-32+30+15/40
RESULTADO: 13/40

Answer 2

Respuesta:

Operación: Pasos...

${}^{1ro } \: \: \: \frac{2}{5} + \frac{3}{4} - \frac{6}{5} + \frac{3}{8}$

${}^{2do} \:\: \: \frac{2 \bf \times8}{5 \times \bf8} + \frac{3 \times \bf10}{4 \times \bf10} - \frac{6\times \bf8 }{5 \times \bf8} + \frac{3 \times \bf5}{8 \times \bf5}$

${}^{3ro} \: \: \: \frac{16}{ \bf40} + \frac{30}{ \bf40} - \frac{48}{ \bf40} + \frac{15}{ \bf40}$

${}^{4to} \: \: \: \frac{16 + 30 - 48 + 15}{ \bf40} = \color{r}{\boxed{\frac{13}{40} }}$