Question

Cacule o valor das expressoes e simplificando quando possível:1)1/5+4/3.1/3= 2)3/10+4/5:1/2= 3)5/8+1/2-2/3= 4)5/1+1/3-1/10= 5)7/5:3/4===

Answer 1

1)1/5+4/3.1/3=  1/5 + 4/9    mmc= 45

   9+20 ==> 29/45
     45 
2)3/10+4/5:1/2=   3/10 + 4/5 . 2/1  3/10 + 4/5         mmc = 10
   3+8 ==> 11/10
     10

  
3)5/8+1/2-2/3     mmc = 24         15+12-16 ==> 11/24
              24
4) 5/1+1/3-1/10   mmc = 30
     (150+10-3)/30            157/30

5)7/5:3/4          7/5 .4/3

          28/15