Question

a= (-1/2 + 2/3) . (2 - 1/4) b= (-2 + 1/3) : (2/3 - 3) Calcule A .B

Answer 1

A . B = [(-1/2+2/3).(2-1/4)]. [(-6+1)/3 ÷ (2-9)3]

A.B = [(-3+4)/6. (8 - 1)/4] . [ -5/-7]

A.B = [(1/6).(7/4)].[5/7] =

A.B = 7/24 . 5/7  =

A.B = 5/24