Oblicz. ułamki.
a 1/7 : 3
b 3/4 :7
c 6/5 :4
d 9/7 :5
e 3/5 :12
f 4/5 :4
g 1 1/4 :9
h 2 1/2 : 4
i 4 3/4 :5
j 14 4/10 :12
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a 1/7 : 3 = 1/7 * 1/3 = 1/21
b 3/4 :7 = 3/4 * 1/7 = 3/28
c 6/5 :4 = 6/5 * 1/4 =6/20 =3/10
d 9/7 :5 = 9/7 * 1/5 = 9/35
e 3/5 :12 = 3/5 * 1/12 = 3/60 = 1/20
f 4/5 :4 = 4/5 * 1/4 = 1/5
g 1 1/4 :9 = 5/4 * 1/9 = 5//36
h 2 1/2 : 4 = 5/2 * 1/4 = 5/8
i 4 3/4 :5 = 19/4 * 1/5 = 19/20
j 14 4/10 :12 = 144/10 * 1/12 = 12/10 = 6/5