Sagot :
Bonjour,
9/8 - 4/8 = 5/8
7 - 4/8 = 56/8 - 4/8 = 52/8 = 26/4 = 13/2
8/2 + 1 = 8/2 + 2/2 = 10/2 = 5
9 - 9/8 = 72/8 - 9/8 = 63/8 = 7.875
8/45 - 8/9 = 8/45 - 40/45 = -32/45
7/5 - 9/25 = 35/25 - 9/25 = 26/25
3/10 + 1/5 = 3/10 + 2/10 = 5/10 = 1/2
Réponse:
a 9/8-4/8=5/8
b 7-4/8=56/8-4/8=52/8=26/4=13/2
c 8/2+1=8/2+2/2=10/2=5
d 9-9/8=72/8-9/8=63/8=7,875
e 8/45-98=8/45-40/45=-32/25
f 7/5-9/25=35/25-9/25=26/25