Question

2 supra 5 + 7 supra 3 = ?
1 supra 2 + 1 supra 3 + 5 supra 6 = ?
1 supra 3 + 5 supra 6 + 3 supra 4 + 7 supra 24 = ?

Answer 1

2/5+7/3= aducem la acelasi numitor 15
6+35/15=41/15
1/2+1/3+5/6=     numitor comun 6
3+2+5/6=10/6  simplificam cu 2 si avem  5/3
1/3+5/6+3/4+7/24=       numitor comun   24
8+20+18+7/24=53/24

Answer 2

2/5+7/3=6/15+35/15=41/15=2 intregi si 11/15;
1/2+1/3+5/6=3/6+2/6+5/6=10/6=1 intreg si 4/6;
1/3+5/6+3/4+7/24=8/24+20/24+18/24+7/24=53/24=2 intregi si 5/24;