Выполните действия:(7/12-1/3)*16/19; (11/24+1/6)*1 3/5; (7-2 5/16)*4/25

Question

Выполните действия:(7/12-1/3)*16/19; (11/24+1/6)*1 3/5; (7-2 5/16)*4/25

Answer 1

(7/12 - 1/3) * 16/19 = (7-4)/12 * 16/19 = 3/12 * 16/19 = 3/3 * 4/19 = 12/57 = 4/19
(11/24 + 1/6) * 1 3/5 = (11+4/24) * 8/5 = 15/24 * 8/5 = 3/4
(7 - 2 5/16) * 4/25 = 4 11/16 * 4/25 = 75/16 * 4/25 = 3/4

Answer 2

(7/12-1/3)*16/19=7/12-4/12=3/12*16/19=12/57=4/19; 2)(11/24+1/6)*1 3/5=11/24+4/24=15/24*1 3/5=3/3=1; 3)(7-2 5/16)*4/25=6+1=6 16/16-2 5/16=4 11/16*4/25=75/16*4/25=3/4.