Calcule as frações
A) 1/2+2/4+3
B) 2/4+5/6+2/8
C) 3/6+2/6+1/7
X3u6f9f9:
A) 1/2+ 2/4+ 1/3
Soluções para a tarefa
Respondido por
1
a) 1/2+2/4+3= 1/2+1/2(simplificando)+3
= 2/2+3 = 4
b) 2/4+5/6+2/8
= 1/2+5/6+1/4. MMC=12
= 6+10+3/12
= 19/12
c)3/6+2/5+1/7
=1/2+2/5+1/7. MMC=70
=35+28+10/70
=73/70
= 2/2+3 = 4
b) 2/4+5/6+2/8
= 1/2+5/6+1/4. MMC=12
= 6+10+3/12
= 19/12
c)3/6+2/5+1/7
=1/2+2/5+1/7. MMC=70
=35+28+10/70
=73/70
Obs : m.mc.2/6/8
24
Respondido por
0
a) 1/2+2/4+3/0= 6/4
b) 2/4+5/6+2/8=38/24
mmc:
4,6,8 |2
2,3,4 |2
1,3 ,2 |2
1,3, 1 |3
1,1, 1 2×2×2×3=24
Denominador=24
2×6=12
5×4=20
2×3=6
20+12+6=38
c) 3/6+2/6+1/7=41/42
mmc
6,6,7 |3
2,2,7 |2
1,1,7 |7
1,1,1
3×2×7=42
3×7=21
2×7=14
1×6= 6
21+14+6=41
b) 2/4+5/6+2/8=38/24
mmc:
4,6,8 |2
2,3,4 |2
1,3 ,2 |2
1,3, 1 |3
1,1, 1 2×2×2×3=24
Denominador=24
2×6=12
5×4=20
2×3=6
20+12+6=38
c) 3/6+2/6+1/7=41/42
mmc
6,6,7 |3
2,2,7 |2
1,1,7 |7
1,1,1
3×2×7=42
3×7=21
2×7=14
1×6= 6
21+14+6=41
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