Aidez moi j ai un exo de math a faire pour demain Le numero 47

A = 1/3 x 3/16 x 16/13 = 1/13

B = 25/12 x 16/10 x 3/20
B = 5x5x4x4x3/(3x4x2x5x4x5)
B = 1/2

C = 21/8 x 24/3 x 5/14
C = 3x7x3x8x5/(8x3x7x2)
C =15/2

D = 27/72 x 54/45 x 40/3
D = 3x9x6x9x5x8/(9x8x9x5x3)
D = 6