Répondre :
Bonjour;
3/48 +5/6 = 3/48 +5/6*8/8 = 3/48 +40/48 43/48
4/7 -11/35 = 4/7 *5/5 -11/35 = 20/35-11/35 = 9/35
10+7/8 = 10/1* 8/8 +7/8 = 80/8 +7/8 = 87/8
23/4 -3 = 23/4 -3/1*4/4 = 23/4 -12/4 = 11/4
Bonjour;
3/48 +5/6 = 3/48 +5/6*8/8 = 3/48 +40/48 43/48
4/7 -11/35 = 4/7 *5/5 -11/35 = 20/35-11/35 = 9/35
10+7/8 = 10/1* 8/8 +7/8 = 80/8 +7/8 = 87/8
23/4 -3 = 23/4 -3/1*4/4 = 23/4 -12/4 = 11/4