Réponses

2013-12-02T21:18:17+01:00
7/4 = (3/4)+(4/4)
= (3/4)+1

9/5 = (4/5)+(5/5)
= (4/5)+1

8/3 = (5/3)+(3/3)
= (5/3)+1

15/5 = (10/5)+(5/5)
= 2+1
= 3
2013-12-02T21:28:32+01:00
7/4=4/4+3/4=1+3/4
9/5=5/5+4/5=1+4/5
8/3=3/3+5/3=1+5/3
15/5=5/5+5/5+5/5=1+1+1=3