conta dessas frações a)2/3:4/5+1/2 b)1/2-5/8:5/4 me ajudará.!!
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a) 2/3 : 4/5 + 1/2
2/3 x 5/4 + 1/2
10/12 + 1/2
12(10/12) + 12(1/2)
10 + 6
16
b)1/2 - 5/8 : 5/4
1/2 -5/8 x 4/5
1/2 -20/40
1/2 - 1/2
0
2/3 x 5/4 + 1/2
10/12 + 1/2
12(10/12) + 12(1/2)
10 + 6
16
b)1/2 - 5/8 : 5/4
1/2 -5/8 x 4/5
1/2 -20/40
1/2 - 1/2
0
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