Question

como resolver:1/2+1/4.1/5?

Answer 1

MMC (2, 20) = 20

2, 20|2
1, 10|2
1, 5|5
1, 1

$\dfrac{1}{2} + \dfrac{1}{4} \times \dfrac{1}{5} \\\\\\ \dfrac{1}{2} + \dfrac{1}{20} \\\\ \dfrac{10}{20} + \dfrac{1}{20} = \boxed{ \frac{11}{20} }$


Forte abraço!

Answer 2

1 + 1.1
2    4 5

1 + 1
2    20


10+1 ==> 11
   20         20