Respuesta :

1/2+2/5
First we need to find a common denominator in this case it's 10. In order to change the denominators we need to multiply. 1/2*5/5=5/10
2/5*2/2=4/10
Now we can add our new fractions
5/10+4/10=9/10
Your answer is 9/10 it can not be simplified.