1) 1 − 11/12; 2) 2 − 5/22; 3) 13 − 8 5/12; 4) 63 2/7 + 3 1/7; 5) 15 − 2 3/8; 6) 20 − 19 3/4; 7) 3 − 2/11; 8) 4 − 3 4/9; 9) 7 3/8 − 5; 10) 45 − 44 3/8; 11) 6 7/15 − 3 1/15; 12) 3 5/16 − 2 1/16; 13) 1 1/8 + 2 7/8; 14) 3 7/12 − 1 7/12; 15) 6 7/12 − 3 11/12; 16) 1 3/17 − 10/17; 17) 1 1/6 − 5/6; 18) 6 7/12 − 5 11/12; 19) 7 − 6/5; 20) 8 − 7 3/7
- \(1-\frac{11}{12}=\frac{1}{12}\).
- \(2-\frac{5}{22}=\frac{44}{22}-\frac{5}{22}=\frac{39}{22}=1\frac{17}{22}\).
- \(13-8\frac{5}{12}=4\frac{7}{12}\).
- \(63\frac{2}{7}+3\frac{1}{7}=66\frac{3}{7}\).
- \(15-2\frac{3}{8}=12\frac{5}{8}\).
- \(20-19\frac{3}{4}=\frac{1}{4}\).
- \(3-\frac{2}{11}=2\frac{9}{11}\).
- \(4-3\frac{4}{9}=\frac{5}{9}\).
- \(7\frac{3}{8}-5=2\frac{3}{8}\).
- \(45-44\frac{3}{8}=\frac{5}{8}\).
- \(6\frac{7}{15}-3\frac{1}{15}=3\frac{6}{15}=3\frac{2}{5}\).
- \(3\frac{5}{16}-2\frac{1}{16}=1\frac{4}{16}=1\frac{1}{4}\).
- \(1\frac{1}{8}+2\frac{7}{8}=4\).
- \(3\frac{7}{12}-1\frac{7}{12}=2\).
- \(6\frac{7}{12}-3\frac{11}{12}=2\frac{2}{3}\).
- \(1\frac{3}{17}-\frac{10}{17}=\frac{10}{17}\).
- \(1\frac{1}{6}-\frac{5}{6}=\frac{1}{3}\).
- \(6\frac{7}{12}-5\frac{11}{12}=\frac{2}{3}\).
- \(7-\frac{6}{5}=5\frac{4}{5}\).
- \(8-7\frac{3}{7}=\frac{4}{7}\).