Sagot :
Réponse:
39
A=5/2 + 3/4 +-7/8
=20/8 + 6/8 + -7/8
=26/8 -7/8
19/8
B=4/15+2/5-7/30
=8/30+12/30-7/30
=20/30-7/30
13/30
40
5/8 + 11/16 = 15/24 +44/24=59/24
7/30 + 2/12 =14/60 + 10/60=24/60=4/5
Réponse:
39
A=5/2 + 3/4 +-7/8
=20/8 + 6/8 + -7/8
=26/8 -7/8
19/8
B=4/15+2/5-7/30
=8/30+12/30-7/30
=20/30-7/30
13/30
40
5/8 + 11/16 = 15/24 +44/24=59/24
7/30 + 2/12 =14/60 + 10/60=24/60=4/5