Ответ на вопрос: 26. Найди значение суммы или разности. А: 1/3+1/6; 1/2+1/3; 3/5−1/10; 1/12+5/6; 1/3+1/4; 1/3+2/5; 1/2−1/4; 8/7−1; 1/4−1/5; 1/2+3/7; 3/4−1/8; 1/6+1/6; 4/15+2/5; 7/10−1/2; 1/3−1/4. Б: 1/3−1/6; 3/20+3/4; 7/9−2/3; 1/4+1/5; 2/5+4/15; 1/3+1/4; 2/3−2/5; 1/5−1/6; 1/2+1/4; 7/6−1; 1/2+2/7; 1/2−1/3; 3/4+1/8; 5/6−7/12; 2/5+3/10. В: 11/20−5/12; 8/9+7/54; 5/6−17/21; 3/16+1/24; 5/6−22/27; 7/25−4/15; 3/10+1/6; 2/5−11/30; 3/8+7/20; 1/6−1/7; 5/9+7/15; 3/8+19/56; 19/45−7/18; 1/4−1/8; 11/14+8/21.