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calculeaza. 3/8-1/4 ,7/8-1/4 ,5/8-1/4



Răspuns :

3/8 -1/4 = ( amplifici 1/4 cu 2)
3/8 -2/8 =
= 1/8

7/8 - 1/4 = ( amplifici 1/4 cu 2)
7/8 - 2/8 =
= 5/8

5/8-1/4 = ( amplifici 1/4 cu 2)
5/8 - 2/8 =
=3/8