bonjour
A = 3/4 + 5/6
= 18/24 + 20/24 = 38/24 = 19/12
B = ( 4/6 - 3 /6 ) ² = ( 1/6 ) ² = 1/36
C = ( 4/4 - 1/4 ) : ( 4 /4 + 1/4 ) = 3/4 x 4/5 = 12/20 = 3/5
Réponse :
A=3/4+1/3x 5/2
A=3/4+5/6
A=9/12+10/12
A=19/12
B=(2/3-1/2)²
B=(24/6-3/6)²
B=21/6²
B=21/6 x 21/6
B=12.25
C=[tex]\frac{1-\frac{1}{4} }{1+\frac{1}{4} }[/tex]
C=(4/4-1/4)/(4/4+1/4)
C=3/4 / 5/4
C=3/4 x 4/5
C=3/5
