Решите дроби: 7, 5/8+3, 2/3-8, 3/16= 20-(3, 1/6+2, 3/4)= 7, 5/8+3, 2/3-8, 3/16=

1) 7 5/8 + 3 2/3 - 8 3/16 = (7 * 8 + 5)/8 + (3 * 3 + 2)/3 - (8 * 16 + 3)/16 = (56 + 5)/8 + (9 + 2)/3 - (128 + 3)/16 = 61/8 + 11/3 - 131/16 = 366/48 + 176/48 - 393/48 = (366 + 176 - 393)/48 = 149/48;

Ответ: 149/48.

2) 20 - (3 1/6 + 2 3/4) = 20 - (3 * 6 + 1)/6 - (2 * 4 + 3)/4 = 20 - 19/6 - 11/4 = 240/12 - 38/12 - 33/12 = (240 - 38 - 33)/12 = 169/12;

Ответ: 169/12.