Найдем значение выражения:
а) \(\frac{4}{18} + n\), при \(n = \frac{1}{18}, \frac{3}{18}, \frac{6}{18}\)
1) \(\frac{4}{18} + \frac{1}{18} = \frac{4+1}{18} = \frac{5}{18}\)
2) \(\frac{4}{18} + \frac{3}{18} = \frac{4+3}{18} = \frac{7}{18}\)
3) \(\frac{4}{18} + \frac{6}{18} = \frac{4+6}{18} = \frac{10}{18} = \frac{5}{9}\)
б) \(m - \frac{1}{9}\), при \(m = \frac{6}{9}, \frac{2}{9}\)
1) \(\frac{6}{9} - \frac{1}{9} = \frac{6-1}{9} = \frac{5}{9}\)
2) \(\frac{2}{9} - \frac{1}{9} = \frac{2-1}{9} = \frac{1}{9}\)
в) \(\frac{4}{15} + \frac{3}{15} + x\), при \(x = \frac{1}{15}, \frac{3}{15}, \frac{6}{15}\)
1) \(\frac{4}{15} + \frac{3}{15} + \frac{1}{15} = \frac{4+3+1}{15} = \frac{8}{15}\)
2) \(\frac{4}{15} + \frac{3}{15} + \frac{3}{15} = \frac{4+3+3}{15} = \frac{10}{15} = \frac{2}{3}\)
3) \(\frac{4}{15} + \frac{3}{15} + \frac{6}{15} = \frac{4+3+6}{15} = \frac{13}{15}\)
г) \(\frac{13}{19} - \frac{3}{19} - z\), при \(z = \frac{3}{19}, \frac{5}{19}, \frac{7}{19}\)
1) \(\frac{13}{19} - \frac{3}{19} - \frac{3}{19} = \frac{13-3-3}{19} = \frac{7}{19}\)
2) \(\frac{13}{19} - \frac{3}{19} - \frac{5}{19} = \frac{13-3-5}{19} = \frac{5}{19}\)
3) \(\frac{13}{19} - \frac{3}{19} - \frac{7}{19} = \frac{13-3-7}{19} = \frac{3}{19}\)
Ответ:
а) \(\frac{5}{18}; \frac{7}{18}; \frac{5}{9}\)
б) \(\frac{5}{9}; \frac{1}{9}\)
в) \(\frac{8}{15}; \frac{2}{3}; \frac{13}{15}\)
г) \(\frac{7}{19}; \frac{5}{19}; \frac{3}{19}\)