1) Efetue as operações: a) 5/4 + ¾ - ¼ =
b) 2/5 + 1/5 – 3/5 =
c) 8/7 – 3/7 + 1/7 =
d) 7/3 – 4/3 – 1/3 =
e) 1/8 + 9/8 - 3/8=
f) 7/3 – 2/3 + 1/3 =
g) 7/5 + 2/5 – 1/5 =
h) 5/7 – 2/7 – 1/7 =
2) Efetue as multiplicações simplificando-as:
a) 4/3 x ½ x 2/5 =
b) 1/5 x ¾ x 5/3 =
c) ½ x 3/7 x 1/5 =
d) 3/2 x 5/8 x ¼ =
e) 5/4 x 1/3 x 4/7 =
3) Efetue as divisões simplificando-as:
a) 4/3 : 3/4 =
b) 1/5 : 6/8 =
c) 3/7 : 7/3 =
d) 3/2 : 1/6 =
e) 3/4 : 4/2 =
4) Fatore:
a) 20, 15
b) 4, 6, 12
c) 24, 36
d) 18, 26
e) 8, 20
b) 2/5 + 1/5 – 3/5 =
c) 8/7 – 3/7 + 1/7 =
d) 7/3 – 4/3 – 1/3 =
e) 1/8 + 9/8 - 3/8=
f) 7/3 – 2/3 + 1/3 =
g) 7/5 + 2/5 – 1/5 =
h) 5/7 – 2/7 – 1/7 =
2) Efetue as multiplicações simplificando-as:
a) 4/3 x ½ x 2/5 =
b) 1/5 x ¾ x 5/3 =
c) ½ x 3/7 x 1/5 =
d) 3/2 x 5/8 x ¼ =
e) 5/4 x 1/3 x 4/7 =
3) Efetue as divisões simplificando-as:
a) 4/3 : 3/4 =
b) 1/5 : 6/8 =
c) 3/7 : 7/3 =
d) 3/2 : 1/6 =
e) 3/4 : 4/2 =
4) Fatore:
a) 20, 15
b) 4, 6, 12
c) 24, 36
d) 18, 26
e) 8, 20
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