Bonjour
Calculer et donner le résultat sous la forme la plus simple possible
A) 3/8*-5/4
= - 15/32
-2/7*1/-5
= 2/35
1*3/4*5/6
= 3/4 * 5/6
= 15/24
= (3 x 5) / (3 x 8)
= 5/8
B) -2*4,5/7
= - 9/7
4/3*(-9/16)
= - 36/48
= (12 x - 3) / (12 x 4)
= - 3/4
2*1/3*4*6/5
= 2/3 * 24/5
= 48/15
= (3 x 16) / (3 x 5)
= 16/5
C) 1/-2*2/3*-3/4*6/-5
= - 2/6 * 18/20
= - 36/120
= (12 x - 3) / (12 x 10)
= - 3/10
13/7*(-14)*5/26
= 13/7 * - 70/26
= - 910/182
= (182 x - 5) / (182 x 1)
= - 5.
