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5/7-2/14=?
1-5/8=?
1-3/9=?
4/8-2/16=?
6/9-4/18=?

Dau coronita [+26 de puncte]


Răspuns :

1-5/8=8/8-5/8=3/8
1-3/9=9/9-3/9=6/9=2/3
4/8-2/16=8/16-2/16=6/16=3/8
6/9-4/18=12/18-4/18=8/18=4/9

1)0.375
2)0.667
3)0.375
4)0.467