Ответ:
а) \(\frac{11}{15}-\frac{4}{10}+\frac{1}{45}=\frac{33}{45}-\frac{18}{45}+\frac{1}{45}=\frac{16}{45}\).
б) \(7-4\frac{5}{9}=2\frac{4}{9}\).
в) \(4\frac{3}{10}+1\frac{5}{12}=5+\frac{18}{60}+\frac{25}{60}=5\frac{43}{60}\).
г) \(6\frac{15}{21}+2\frac{9}{14}=6\frac{5}{7}+2\frac{9}{14}=8+\frac{10}{14}+\frac{9}{14}=9\frac{5}{14}\).
д) \(5\frac{1}{6}-3\frac{3}{4}=\frac{61}{12}-\frac{45}{12}=\frac{16}{12}=1\frac{1}{3}\).
Ответ: а) 16/45; б) 2 4/9; в) 5 43/60; г) 9 5/14; д) 1 1/3.
