197. Вычислите: 1) 4 13/17 + 5 4/17; 2) 3 8/11 + 2 9/11; 3) 1 − 16/21; 4) 5 − 2 3/8; 5) 8 4/9 − 3 7/9; 6) 12 19/44 − 6 37/44.

1) \(4\dfrac{13}{17}+5\dfrac{4}{17}=9\dfrac{17}{17}=10\).

2) \(3\dfrac{8}{11}+2\dfrac{9}{11}=5\dfrac{17}{11}=6\dfrac{6}{11}\).

3) \(1-\dfrac{16}{21}=\dfrac{21}{21}-\dfrac{16}{21}=\dfrac{5}{21}\).

4) \(5-2\dfrac{3}{8}=4\dfrac{8}{8}-2\dfrac{3}{8}=2\dfrac{5}{8}\).

5) \(8\dfrac{4}{9}-3\dfrac{7}{9}=7\dfrac{13}{9}-3\dfrac{7}{9}=4\dfrac{6}{9}=4\dfrac{2}{3}\).

6) \(12\dfrac{19}{44}-6\dfrac{37}{44}=11\dfrac{63}{44}-6\dfrac{37}{44}=5\dfrac{26}{44}=5\dfrac{13}{22}\).

Ответ: 1) 10; 2) 6 6/11; 3) 5/21; 4) 2 5/8; 5) 4 2/3; 6) 5 13/22.