Ответ:
НОК(40, 60) = 120. \(\frac{7}{40}+\frac{11}{60}=\frac{21}{120}+\frac{22}{120}=\frac{43}{120}\).
Ответ: \(\frac{43}{120}\).
НОК(40, 60) = 120. \(\frac{7}{40}+\frac{11}{60}=\frac{21}{120}+\frac{22}{120}=\frac{43}{120}\).
Ответ: \(\frac{43}{120}\).