Ответ:
\(4\frac{3}{5}+2.6-5\frac{1}{2}=4.6+2.6-5.5=1.7=1\frac{7}{10}\).
\(4\frac{1}{3}+5.3-2\frac{7}{30}=4\frac{10}{30}+5\frac{9}{30}-2\frac{7}{30}=7\frac{12}{30}=7\frac{2}{5}\).
Ответ: а) 1 7/10; б) 7 2/5.
\(4\frac{3}{5}+2.6-5\frac{1}{2}=4.6+2.6-5.5=1.7=1\frac{7}{10}\).
\(4\frac{1}{3}+5.3-2\frac{7}{30}=4\frac{10}{30}+5\frac{9}{30}-2\frac{7}{30}=7\frac{12}{30}=7\frac{2}{5}\).
Ответ: а) 1 7/10; б) 7 2/5.