Resolva:
-2/5+(-1/3)
0,3+(2/3-1/5)+2 1/2
12/5-(-1)+(-3,6+5,4)
3/5-2+1/5
-4/5-(0,8-0,36)
-2/5+(-1/3)
0,3+(2/3-1/5)+2 1/2
12/5-(-1)+(-3,6+5,4)
3/5-2+1/5
-4/5-(0,8-0,36)
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Verified answer
-2/5+(-1/3) = - 2/5 - 1/3 = --mmc(5,3) = 15- 6/15 - 5/15 = - 11/15
0,3+(2/3-1/5)+2 1/2 =
3/10 + 2/3 - 1/5 + 5/2 = ---mmc(10,3,5,2) = 30
9/30 + 20/30 - 6/30 + 75/30 =
104/30 - 6/30 = 98/30 = 49/15
12/5-(-1)+(-3,6+5,4)=
2,4 + 1 - 3,6 + 5,4 =
8,8 - 3,6 = 5,2 = 52/10 = 26/5
3/5-2+1/5 =
3/5 + 1/5 - 2 =
4/5 - 2 = - 6/5
-4/5-(0,8-0,36)=
- 0,8 - 0,8 + 0,36=
- 1,6 + 0,36 = - 1,24
-2/5-1/3.3/10+2/3-1/5+2/2.12/5+1-36/10+54/10
-2/5-3/30+2/3-1/5+24/10+1/1-36/10+54/10
-12-3/30+ 2/3-1/5+24/10+1/1-36/10+54/10
-15/30+2/3-1/5+24/10+1/1-36/10+54/10
-15+20/30-1/5+24/10+1/1-36/10+54/10
5/30-1/5+24/10+1/1-36/10+54/10
5-6/30+24/10+1/1-36/10+54/10
-1/30+24/10+1/1-36/10+54/10
-1+72/30+1/1-36/10+54/10
+71/30+1/1-36/10+54/10
71+30/30-36/10+54/10
101/30-36/10+54/10
101-108/30+54/10
-7/30+54/10
-7+162/30=155/30 SIMPLIFICA EM CIMA E EMBAIXO POR 5 ai da 31/6 Obrigada!!!