Question

вычислите
(6 7/12-3 17/36)*1/2-4 1/3:13/20

Answer 1

(6 7/12-3 17/36)*1/2-4 1/3:13/20=
=(6 21/36 - 3  17/36) *1/2 - 13/3 * 20/13 = 3 4/36 *1/2 - 20/3 =
=3 1/9 *1/2 - 20/3 = 28/9 *1/2 - 20/3 = 14/9 - 20/3 = 14/9 - 60/9= -46/9=
=-5 1/9