Odpowiedź:
a)
1/6 * 20 = 1/3 * 10 = 3 1/3
b)
3/5 * 30 = 3 * 6 = 18
c)
2 3/4 * 20 = 11/4 * 20 = 11 * 5 = 55
d)
1/7 * 10 = 10/7 = 1 3/7
e)
3/5 * 18 = 54/5 = 10 4/5
f)
2 1/3 * 20 = 7/3 * 20 = 140/3 = 46 2/3
Szczegółowe wyjaśnienie:
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Odpowiedź:
a)
1/6 * 20 = 1/3 * 10 = 3 1/3
b)
3/5 * 30 = 3 * 6 = 18
c)
2 3/4 * 20 = 11/4 * 20 = 11 * 5 = 55
d)
1/7 * 10 = 10/7 = 1 3/7
e)
3/5 * 18 = 54/5 = 10 4/5
f)
2 1/3 * 20 = 7/3 * 20 = 140/3 = 46 2/3
Szczegółowe wyjaśnienie: