um sexto de pizza custa 18 reais ,quantos custa 3/6 5/6 ,quanto custa a pizza toda?
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1/6 --------18
3/6---------X
X.1/6 = 3/6 . 18
X 1/6 = 54/6
X = 54/6 : 1/6
X = 54/6 X 6/1
X = 54
3/6 CUSTARÁ R$54,00
5/6------------------X
1/6------------------18
X.1/6 = 5/6.18
X = 5/6.18: 1/6
X = 5/6 .6/1 . 18
X = 90
5/6 CUSTARÁ R$90,00
6/6(1) -----------X
1/6 --------------18
X.1/6 = 18
X = 18 : 1/6
X = 18 X 6/1
X = 108
6/6 CUSTARÁ R$108,00
3/6---------X
X.1/6 = 3/6 . 18
X 1/6 = 54/6
X = 54/6 : 1/6
X = 54/6 X 6/1
X = 54
3/6 CUSTARÁ R$54,00
5/6------------------X
1/6------------------18
X.1/6 = 5/6.18
X = 5/6.18: 1/6
X = 5/6 .6/1 . 18
X = 90
5/6 CUSTARÁ R$90,00
6/6(1) -----------X
1/6 --------------18
X.1/6 = 18
X = 18 : 1/6
X = 18 X 6/1
X = 108
6/6 CUSTARÁ R$108,00
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