Question

1.Calcule as adições e subtracões de frações:
A) 7/3+3/4-2/4=
B) 1/5+3/5+4/5+6/5=
C) 6/7-1/3+4/3=
D) 19/3-4/3-8/3=
E) 4/3-1/6=
F) 15/7-3/7-1/7=
G) 7/4-8/9=
H) 10/5-3/6=
I) 5/4+2/6+4/5=

Answer 1

A) 7/3+3/4-2/4= 31/12
B) 1/5+3/5+4/5+6/5= 14/5
C) 6/7-1/3+4/3= 13/7
D) 19/3-4/3-8/3= 7/3
E) 4/3-1/6= 7/6
F) 15/7-3/7-1/7= 11/7
G) 7/4-8/9= 31/36
H) 10/5-3/6= 3/10
I) 5/4+2/6+4/5= 143/60