Question

1/8 + 3/5 =
2/3 - 1/5 =
4/3 - 1/4 =

Answer 1

1/8+3/5 = 

mmc =

8,5 ] 2
4,5 ] 2
2,5 ] 2
1,5 ] 5
1,1

2*2*2*5= 40 

5/40+24/40 = 5+24/40 =

29/40

B)

2/3-1-5 = 

mmc
3,5]3
1,5]5
1,1

3*5=15

10/15-3/15 =10-3/15 =

7/15

C)4/3-1/4

mmc= 

3,4 ] 2
3,2 ] 2
3 ,1 ] 3
,1,1

2*2*3=12

16/12-3/12 = 16-3/12 =

13/12