Ответ:

  1. \(\frac a4+\frac b8=\frac{2a+b}{8}\).
  2. \(\frac n{10}-\frac m5=\frac{n-2m}{10}\).
  3. \(\frac6{25}+\frac a{100}=\frac{24+a}{100}\).
  4. \(\frac1{2a}+\frac1{2b}=\frac{a+b}{2ab}\).
  5. \(\frac1{6x}-\frac1{6y}=\frac{y-x}{6xy}\).
  6. \(\frac3{5c}-\frac2{15c}=\frac7{15c}\).
  7. \(\frac{x}{3a}+\frac{3x}{6a}=\frac{5x}{6a}\).
  8. \(\frac a{28m}-\frac a{7m}=\frac{-3a}{28m}\).
  9. \(\frac{3b}{10x}+\frac a{15x}=\frac{9b+2a}{30x}\).
  10. \(\frac{5x}{12a}-\frac{2y}{9a}=\frac{15x-8y}{36a}\).