Question

Помогите, пожалуйста
вычислите удобным способом 73 * 1 7/24 + 3/19 * 7/9 -73 * 7/24 + 2/9 * 3/19 = ?

Answer 1

73 * 1 7/24 + 3/19 * 7/9 -73 * 7/24 + 2/9 * 3/19 = (73 * 1 7/24-73 * 7/24) +   (3/19 * 7/9 + 2/9 * 3/19 ) = 73 (1 7/24 - 7/24 ) + 3/19 (7/9 + 2/9) = 73*1 + 3/19*1 =
=73  3/19
 

Answer 2

(73*1 7/24-73*7/24)+(3/19*7/9+2/9*3/19)=73(1 7/24-7/24)+3/19(7/9+2/9)=
=73*1+3/19*1=73+3/19=73 3/19