Sagot :
Bonjour
12 x 5/4 = 60/4 = 15
12 + 5/4 = (12 x 4) / (1 x 4) + 5/4 = 48/4 + 5/4 = 53/4
25 x 7/15 = 175/15 = (5 x 35) / (5 x 3) = 35/3
Bonsoir,
12 x 5 / 4
= 60/4 =15
12 + 5 / 4
= 48/4 +5/4
= 53/4
25 x 7 / 15
= 175/15
= 35/3
25 + 7 / 15
375/15 +7/15
= 382/15