Question

Determine O Valor Da Expressão

a+b-a.b/1.a.b para a 1/2 para b 2/5

Answer 1

(1/2 + 2/5 - 1/2 . 2/5)/1.1/2.2/5=
(1/2 + 2/5 -2/10)/2/10=
(1/2 + 2/5 - 1/5)/1/5=
( 1/2 + 3/5)/1/5= ---MMC(2,5)=10
 (5/10+6/10)/1/5 =
 11/10 : 1/5 = 11/10 . 5 = 55/10 = 11/2