Efetue as adições e as subtrações a) (-2/3) + (+1/4)b) (-4/7) + (-2/6)c) (+1/7) - (+1/3)d) (+2/3) - (+1/3)e)( -4/5) - (-1/8)f) (-3/4) -5 com cálculos e respostas
Soluções para a tarefa
Respondido por
6
a) -2/3+1/4
-8+3/12
-5/12
b)-4/7-2/6
-24-14/42
-38/42
-19/21
c)1/7-1/3
3-7/21
-4/21
d)2-1/3
1/3
e)-4/5+1/8
-32+5/40
-27/40
f)-3/4-5/1
-3-20/4
-23/4
-8+3/12
-5/12
b)-4/7-2/6
-24-14/42
-38/42
-19/21
c)1/7-1/3
3-7/21
-4/21
d)2-1/3
1/3
e)-4/5+1/8
-32+5/40
-27/40
f)-3/4-5/1
-3-20/4
-23/4
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