Respuesta :

3/4 + 2/5 + 1/2 = 15/20 + 8/20 + 10/20
= 33/20
= 1.65
3/4 + 2/5 + 1/2= ?

Here the least common denominator (LCD) is 20.

Multiply the entire expression 
3/4 + 2/5 + 1/2 by 20, and then divide the result by 20:

20(
3/4 + 2/5 + 1/2)           15 + 8 + 10                 33
-------------------------- =   ----------------------  = ---------------, or 1  13/20
              20                               20                        20

RELAXING NOICE
Relax