Найдите значение выражения 1 3/5*2 4/7+2 4/7*1 1/10-1 7/10*1 4/7

1 3/5 * 2 4/7 + 2 4/7 * 1 1/10 - 1 7/10 * 1 4/7 = 2 4/7 * (1 3/5 + 1 1/10) - 1 7/10 * 1 4/7 = 2 4/7 * (8/5 + 11/10) - 1 7/10 * 1 4/7 = 2 4/7 * (8 * 2 + 11 * 1)/10 - 1 7/10 * 1 4/7 = 2 4/7 * (16 + 11)/10 - 1 7/10 * 1 4/7 = 2 4/7 * 27/10 - 1 7/10 * 1 4/7 = 18/7 * 27/10 - 17/10 * 11/7 = 9/7 * 27/5 - 17/10 * 11/7 = 243/35 - 187/70 = (243 * 2 - 187 * 1)/70 = (486 - 187)/70 = 299/70 = 4 19/70.

Ответ: 4 19/70.