Question

вычислите наиболие удобным способом (6 8/11*4/5)* 1 1/4 ,2 5/6*(17,8*6/17)

Answer 1

(6 8/11 * 4/5) * 1 1/4 =
(6 8/11 * 4/5) * 5/4 = 
6 8/11 * (4/5 * 5/4) = 
6 8/11 * 1 =  6 8/11,

2 5/6 * (17,8 * 6/17) =
17/6 * (17,8 * 6/17) =
(17/6 * 6/17) * 17,8 = 
1 * 17,8 =  17,8