\(1,\\ a,A\\ b,D\\ 2,\\ a,\dfrac{6}{5}>1>\dfrac{5}{6}\\ b,\dfrac{2}{11}=\dfrac{4}{22}< \dfrac{4}{21}\left(22>21\right)\)
\(3,\) Ta có \(\dfrac{1}{5}=\dfrac{7}{35};\dfrac{2}{7}=\dfrac{10}{35};\dfrac{7}{35}< \dfrac{10}{35}\Rightarrow\dfrac{1}{5}< \dfrac{2}{7}\)
Vậy em được nhiều kẹo hơn
\(4,\\ \dfrac{4}{9};\dfrac{4}{7};1;\dfrac{3}{2}\)
1.
a) A
b) D
2.
a) \(\dfrac{6}{5}>1>\dfrac{5}{6}\)
b) \(\dfrac{2}{11}=\dfrac{4}{22}< \dfrac{4}{21}\left(22>21\right)\)
3.
Ta có:
Quy đồng mẫu số ta đc \(\dfrac{1}{5}=\dfrac{7}{35};\dfrac{2}{7}=\dfrac{10}{35}.\) Vì \(\dfrac{7}{35}< \dfrac{10}{35}\Rightarrow\dfrac{1}{5}< \dfrac{2}{7}\)
Vậy em đc nhiều kẹo hơn cj.
4.
\(\dfrac{4}{9};\dfrac{4}{7};1;\dfrac{3}{2}\)
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