Question

Найдете значение выражения. (1/5 +б )-9/20 ,б=13/16

Answer 1

( 1/5 + Б ) - 9/20 при Б = 13/16
( 1/5 + 13/16 ) - 9/20 = 
( 1/5 + 13/16 ) - 9/20 =
14/21 - 9/20 = 5/1 = 1