Điền dấu thích hợp vào chỗ chấm:\(a)\,\frac{3}{4}-...

Câu hỏi: Điền dấu thích hợp vào chỗ chấm:\(a)\,\frac{3}{4}-\frac{1}{2}\,\cdot \cdot \cdot \,\frac{1}{6}\,\)\(b)\,\,\,\frac{3}{8}+\frac{2}{5}\,\,\,\cdot \cdot \cdot \,\,\,\frac{1}{4}+\frac{9}{20}\)\(c)\,\,\frac{5}{4}+\frac{1}{2}-1\,\cdot \cdot \cdot \,\frac{3}{4}-\frac{2}{15}+\frac{9}{30}\,\)

A a) \(\frac{3}{4} - \frac{1}{2} > \frac{1}{6}\)

b) \(\frac{3}{8} + \frac{2}{5}\,\,\, > \,\,\,\frac{1}{4} + \frac{9}{{20}}\)

c) \(\frac{5}{4} + \frac{1}{2} - 1\,\,\,\, > \,\,\,\,\frac{3}{4} - \frac{2}{{15}} + \frac{9}{{30}}\,\)

B a) \(\frac{3}{4} - \frac{1}{2} > \frac{1}{6}\)

b) \(\frac{3}{8} + \frac{2}{5}\,\,\, < \,\,\,\frac{1}{4} + \frac{9}{{20}}\)

c) \(\frac{5}{4} + \frac{1}{2} - 1\,\,\,\, < \,\,\,\,\frac{3}{4} - \frac{2}{{15}} + \frac{9}{{30}}\,\)

C a) \(\frac{3}{4} - \frac{1}{2} > \frac{1}{6}\)

b) \(\frac{3}{8} + \frac{2}{5}\,\,\, > \,\,\,\frac{1}{4} + \frac{9}{{20}}\)

c) \(\frac{5}{4} + \frac{1}{2} - 1\,\,\,\, < \,\,\,\,\frac{3}{4} - \frac{2}{{15}} + \frac{9}{{30}}\,\)

D a) \(\frac{3}{4} - \frac{1}{2} < \frac{1}{6}\)

b) \(\frac{3}{8} + \frac{2}{5}\,\,\, > \,\,\,\frac{1}{4} + \frac{9}{{20}}\)

c) \(\frac{5}{4} + \frac{1}{2} - 1\,\,\,\, < \,\,\,\,\frac{3}{4} - \frac{2}{{15}} + \frac{9}{{30}}\,\)