Répondre :
7/2-2/3=(7*3)/(2*3)-(2*2)/(3*2)=21/6-4/6=17/6
2/3+7/12=(2*4)/(3*4)+7/12=8/12+7/12=15/12=(3*5)/3*4)=5/4
-5/4-5/16=-(5*4)/(4*4)-5/16=-20/16-5/16=-25/16=-(5/4)²
25/42+-3/7=25/42-(3*6)/(7*6)=25/42-18/42=7/42=(7*1)/(7*6)=1/6
CALCULER SOUS FORME FRACTIONAIRE SIMPLIFIER LE RESULTAT 7/2-2/3 2/3+7/12 -5/4-5/16 25/42+-3/7
7/2-2/3=(7*3)/(2*3)-(2*2)/(3*2)=21/6-4/6=17/6
2/3+7/12=(2*4)/(3*4)+7/12=8/12+7/12=15/12=(3*5)/3*4)=5/4
-5/4-5/16=-(5*4)/(4*4)-5/16=-20/16-5/16=-25/16=-(5/4)²
25/42+-3/7=25/42-(3*6)/(7*6)=25/42-18/42=7/42=(7*1)/(7*6)=1/6