CALCULE E SIMPLIFIQUE
a) 9/12 - 3/12= b) 1 - 4/5= c)1/2+1/5-1/3= d)2/5 de 5000= e)3/10 de 400= f)3/5 de 300=
a) 9/12 - 3/12= b) 1 - 4/5= c)1/2+1/5-1/3= d)2/5 de 5000= e)3/10 de 400= f)3/5 de 300=
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9 - 3 = 6 (Simplifica por 3) = 2
12 12 12 4
b) 1 - 4/5=
1 - 4 = 5 - 4 = 1
5 5 5
c)1/2+1/5-1/3=
1 + 1 - 1 = 15+6-10 = 11
2 5 3 30 30
d)2/5 de 5000=
2 . 5000 = 10000 = 2000
5 5
e)3/10 de 400=
3 . 400 = 1200 = 120
10 10
f)3/5 de 300=
3 . 300 = 900 = 180
5 5