Question

Efetue os cálculos simplificando até obter uma fração irredutível quando possível a 2/3+5/3 b1/4+5/4 C 11/12-5/14 d1/4+5/4 e1/2+2/3 f 3/5-1/4 g3/7+1/7-3/5 h 1/6+1/8-2/4

Answer 1

a) 2/4 + 5/3
7/12
b) 1/4+5/4
5/4
c) 11/12-5/14
6/2
3/1
d)1/4+5/4
6/4
3/2
e)1/2+2/3
3/6
1/2
f)3/5-1/4
2/20
1/10
g)3/7+1/7-3/5
4/7-3/5
1/35
h)1/6+1/8-2/4
2/24-2/4
24

Answer 2

a) 2/3+5/3 = 7/3
b)1/4+5/4 = 6/4 (simplifica por 2) = 3/2
c) 11/12-5/14 = (mmc de 12 e 14) = 77/84 - 66/84= 11/84
d) (mesmo da B)
e) 1/2+2/3 = (mmc de 2 e 3) = 3/6+4/6 = 7/6
f) 3/5-1/4 = (mmc de 5 e 4) = 12/20-5/20 = 7/20
g) 3/7+1/7 = 4/7
h) 1/6+1/8-2/4= (mmc de 6, 8 e 4) = 4/24+3/24-12/24 = 5/24

Espero ter ajudado ! ^^