30. Выполните сложение или вычитание: 1) 3 3/4 − 1 1/4; 2) 2 3/4 − 1 1/4; 3) 6 4/33 + 1 5/33; 4) 5 11/25 + 6/25; 5) 5 1/3 − 4 2/3; 6) 6 14/17 + 1 6/17; 7) 7 4/5 − 6 4/5; 8) 4 7/71 − 9/71; 9) 8 8/9 + 8 7/9; 10) 12/13 − 7/13; 11) 33/34 + 1/34; 12) 3 + 5 3/43; 13) 7 − 1/5; 14) 6/13 + 5/13; 15) 15/22 − 7/22; 16) 11 − 5 5/22; 17) 5 + 3 3/8; 18) 6 + 4 2/7; 19) 14/19 + 5/19; 20) 4 11/17 + 2 6/17; 21) 5 + 3 3/41; 22) 2 1/3 + 5 2/3; 23) 7/34 + 5/34; 24) 12/41 − 5/41; 25) 16 − 9 6/13; 26) 7 + 4 3/4; 27) 12 1/3 − 5 2/3.
- \(2\frac{1}{2}\)
- \(1\frac{1}{2}\)
- \(7\frac{9}{33}=7\frac{3}{11}\)
- \(5\frac{17}{25}\)
- \(\frac{8}{3}=2\frac{2}{3}\)
- \(8\frac{20}{17}=9\frac{3}{17}\)
- \(1\)
- \(4\frac{7}{71}-\frac{9}{71}=4-\frac{2}{71}=3\frac{69}{71}\)
- \(17\frac{15}{9}=18\frac{2}{3}\)
- \(\frac{5}{13}\)
- \(1\)
- \(8\frac{3}{43}\)
- \(6\frac{4}{5}\)
- \(\frac{11}{13}\)
- \(\frac{8}{22}=\frac{4}{11}\)
- \(5\frac{17}{22}\)
- \(8\frac{3}{8}\)
- \(10\frac{2}{7}\)
- \(1\)
- \(7\frac{1}{17}\)
- \(8\frac{3}{41}\)
- \(8\)
- \(\frac{12}{34}=\frac{6}{17}\)
- \(\frac{7}{41}\)
- \(6\frac{7}{13}\)
- \(11\frac{3}{4}\)
- \(6\frac{2}{3}\)