Question

1/2 . raiz quadrada de 1,69 + 2/5 . raiz quadrada de 0,81 = ?? Preciso da conta

Answer 1

1/2 * V(1,69) + 2/5 * V(0,81)
V1,69  =  169/100  = 13/10  ****   

V0,81 = 81/100 = 9/10 *****
(1/2 * 13/10  ) + ( 2/5 * 9/10 ) =
13/20 + 18/50 =
mmc = 100
( 65 + 36)/100 = 101/100 ***