Réponse :
bonjour
1/2+1/3=3/6+2/6=5/6
1/3+1/4=4/12+3/12=7/12
1/4+1/5=5/20+4/20=9/20
5/6+7/12=10/12+7/12=17/12
7/12+9/20=35/60+27/60=62/60=31/30
17/12+31/30=85/60+62/60=147/60=49/20
49/20
17/12 31/30
5/6 7/12 9/20
1/2 1/3 1/4 1/5
17/12-3/4=17/12-9/12=8/12=2/3
49/30-4/5=49/30-24/30=25/30=5/6
3/4+4/5=15/20+16/20=31/20
17/12+31/20=85/60+93/60=178/6089/30
31/20+49/30=93/60+98/60=191/60
89/30+191/60=178/60+191/60=369/60=123/20
123/20
89/30 191/60
17/12 31/20 49/30
2/3 3/4 4/5 5/6
Explications étape par étape :
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Réponse :
bonjour
1/2+1/3=3/6+2/6=5/6
1/3+1/4=4/12+3/12=7/12
1/4+1/5=5/20+4/20=9/20
5/6+7/12=10/12+7/12=17/12
7/12+9/20=35/60+27/60=62/60=31/30
17/12+31/30=85/60+62/60=147/60=49/20
49/20
17/12 31/30
5/6 7/12 9/20
1/2 1/3 1/4 1/5
17/12-3/4=17/12-9/12=8/12=2/3
49/30-4/5=49/30-24/30=25/30=5/6
3/4+4/5=15/20+16/20=31/20
17/12+31/20=85/60+93/60=178/6089/30
31/20+49/30=93/60+98/60=191/60
89/30+191/60=178/60+191/60=369/60=123/20
123/20
89/30 191/60
17/12 31/20 49/30
2/3 3/4 4/5 5/6
Explications étape par étape :