Odpowiedź:
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a) 1/2 = 1*3/2*3 = 3/6
b) 2/5 = 2*7/5*7 = 14/35
c) 4/7 = 4*4/7*4 = 16/28
d) 3/8 = 3*3/8*3 = 9/24
e) 1/4 = 1*5/4*5 = 5/20
f) 3/7 = 3*2/7*2 = 6/14
g) 4/5 = 4*10/5*10 = 40/50
h) 7/8 = 7*5/8*5 = 35/40
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a) 9/12 = 9:3/12:3 = 3/4
b) 7/21 = 7:7/21:7 = 1/3
c) 4/12 = 4:4/12:4 = 1/3
d) 3/9 = 3:3/9:3 = 1/3
e) 15/20 = 15:5/20:5 = 3/4
f) 4/6 = 4:2/6:2 = 2/3
g) 50/70 = 50:10/70:10 = 5/7
h) 10/25 = 10:5/25:5 = 2/5
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Szczegółowe wyjaśnienie:
Mam nadzieję że pomogłam :)