1.Oblicz
a')5/11 - 2/5 =
b)5/9 - 1/2 =
c)2/3 - 1/4 =
d)3/5 - 2/7 =
e)7/12 - 1/8 =
f)11/15 - 3/10 =
g) 7/9 - 4/15 =
h)5/6 - 2/15 =
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a)
5/11 - 2/5 =
= 50/110 - 44/110 =
= 6/110 =
= 3/55
b)
5/9 - 1/2 =
= 10/18 - 9/18 =
= 1/18
c)
2/3 - 1/4 =
= 8/12 - 3/12 =
= 5/12
d)
3/5 - 2/7 =
= 21/35 - 10/35 =
= 11/35
e)
7/12 - 1/8 =
= 14/24 - 3/24 =
= 11/24
f)
11/15 - 3/10 =
= 22/30 - 9/30 =
= 13/30
g)
7/9 - 4/15 =
= 35/45 - 12/45 =
= 23/45
h)
5/6 - 2/15 =
= 25/30 - 4/30 =
= 21/30
a) 5/11 - 2/5 = 3/55
b) 5/9 - 1/2 = 1/18
c) 2/3 - 1/4 = 5/12
d) 3/5 - 2/7 = 11/35
e) 7/12 - 1/8 = 44/96
f) 11/15 - 3/10 = 65/150
g) 7/9 - 4/15 = 69/135
h) 5/6 - 2/15 = 63/90