Svp B=3/5-2/5✖️15/4 C=4/3-1/3✖️(3+1/2) D=(5/6-5/4)%5/8 Merci

bonsoir

B = 3/5 - 30/20

B = 12/20 - 30 /20

B = - 18 /20 = - 9 /10

C = 4/3 - 1 /3 x 7/2

C = 4/3 - 7/6

C = 8/6 - 7/6 = 1 /6

D =  ( 10/12 - 15/12 ) : 5/8

D = - 5/12 x 8/5

D = - 40/60

D = - 2/3