Выполните сложение или вычитание 7/18+11/36, 26/45-16/30, 13/18-5/24, 1+3/8, 2+5/6, 2+3/5, 3+10/17, 22 11/15-22, 12 2/25+7 32/50, 5 3/20-4 7/10, 11 1/4+3 7/10, 5/13+7/26, 11/63-1/9,12/15-3/5, 5+4/9,4-7/11, 2+4/7, 5-12/15, 13 11/12-10, 15 7/24+8 1/3, 4 4/15-2 1/30, 12 1/5+2 5/10, 7/12+4/36, 15/27-1/9, 11/14-17, 4+2/7, 5-4/9, 6+2/3,10+15/21, 15 1/7-5, 16 2/9+2 1/18, 3 4/17-2 1/34, 14 2/3+3 4/15
