Efetue as frações:
1/5 - 3/5=
8/4 +1/3=
3/2 - 4/12=
2/5 + 3/6=
2/5 + 2/7=
8/4 + 2/3=
7/15 - 2/20=
1/2 + 1/3 + 1+4=
Soluções para a tarefa
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1/5-3/5=2/5
8/4+1/3=28/12= 7/3
3/2-4/12=14/12= 7/6
2/5+3/6= 27/30
2/5+2/7=24/35
8/4+2/3=32/12= 8/3
7/15-2/20=24/60= 3/5
1/2+1/3+1+4= 30/6= 5
8/4+1/3=28/12= 7/3
3/2-4/12=14/12= 7/6
2/5+3/6= 27/30
2/5+2/7=24/35
8/4+2/3=32/12= 8/3
7/15-2/20=24/60= 3/5
1/2+1/3+1+4= 30/6= 5
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