Réponse :
Explications étape par étape
Bonjour
Voici la consigne :
Calculer en donnant le détail des calculs.
A) 5/6-7/6*1/14+2/3
= 5/6 - 7/14 x 1/6 + 2/3
= 5/6 - 1/2 x 1/6 + 2/3
= (5 x 2)/(6 x 2) - 1/12 + (2 x 4)/(3 x 4)
= 10/12 - 1/12 + 8/12
= (10 - 1 + 8)/12
= 17/12
Q ) 1-1/3/3*3/4-1/5
= 1 - (1/3)/3 * 3/4 - 1/5
= 1 - 1/9 * 3/4 - 1/5
= 1 - 3/9 * 1/4 - 1/5
= 1 - 1/3 * 1/4 - 1/5
= 1 - 1/12 - 1/5
= (1 x 5 x 12)/(5 x 12) - (1 x 5)/(12 x 5) - (1 x 12)/(5 x 12)
= 60/60 - 5/60 - 12/60
= (60 - 5 - 12)/60
= 43/60
