Odpowiedź:
a)
0,5 - 1/3 = 1/2 - 1/3 = 3/6 - 2/6 = 1/6
b)
5/6 - 0,125 = 5/6 - 1/8 = 20/24 - 3/24 = 17/24
c)
0,8 - 2/5 = 0,8 - 0,4 = 0,4
d)
1,5 - 7/8 = 1,5 - 0,875 = 0,625
e)
18,2 - 1/4 = 18,2 - 0,25 = 17,95
f)
2 2/7 - 0,6 = 2 2/7 - 3/5 = 2 10/35 - 21/35 = 1 45/35 - 21/35 = 1 24/35
g)
4 5/9 - 3,75 = 4 5/9 - 3 3/4 = 4 20/36 - 3 27/36 = 3 56/36 - 3 27/36 = 29/36
h)
12.05 - 3 1/8 = 12,05 - 3,125 = 8,925
i)
4,7 - 1 5/6 = 4 7/10 - 1 5/6 = 4 21/30 - 1 25/30 = 3 51/30 - 1 25/30 = 2 26/30 =
= 2 13/15
Szczegółowe wyjaśnienie:
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Odpowiedź:
a)
0,5 - 1/3 = 1/2 - 1/3 = 3/6 - 2/6 = 1/6
b)
5/6 - 0,125 = 5/6 - 1/8 = 20/24 - 3/24 = 17/24
c)
0,8 - 2/5 = 0,8 - 0,4 = 0,4
d)
1,5 - 7/8 = 1,5 - 0,875 = 0,625
e)
18,2 - 1/4 = 18,2 - 0,25 = 17,95
f)
2 2/7 - 0,6 = 2 2/7 - 3/5 = 2 10/35 - 21/35 = 1 45/35 - 21/35 = 1 24/35
g)
4 5/9 - 3,75 = 4 5/9 - 3 3/4 = 4 20/36 - 3 27/36 = 3 56/36 - 3 27/36 = 29/36
h)
12.05 - 3 1/8 = 12,05 - 3,125 = 8,925
i)
4,7 - 1 5/6 = 4 7/10 - 1 5/6 = 4 21/30 - 1 25/30 = 3 51/30 - 1 25/30 = 2 26/30 =
= 2 13/15
Szczegółowe wyjaśnienie: