A. \( - \frac{{31}}{{24}} < - 1\frac{1}{{12}} < \frac{{12}}{{100}} < 5\frac{1}{2} > 23{\rm{\% }}\)
B. \( - \frac{{31}}{{24}} < - 1\frac{1}{{12}} < 23{\rm{\% < }}\frac{{12}}{{100}} < 5\frac{1}{2}\)
C. \( - \frac{{31}}{{24}} < - 1\frac{1}{{12}} < \frac{{12}}{{100}}<23{\rm{\%}} < 5\frac{1}{2}\)
D. \( - 1\frac{1}{{12}} < - \frac{{31}}{{24}} < \frac{{12}}{{100}}<23{\rm{\%}} < 5\frac{1}{2}\)
C
Ta có: \( 23{\rm{\% }} = \frac{{23}}{{100}};\)
Ta chia thành hai nhóm phân số là:
\( \frac{{23}}{{100}};\frac{{12}}{{100}};\frac{{11}}{2}\) và \( - \frac{{13}}{{12}}; - \frac{{31}}{{24}}\)
Nhóm 1:
\( \frac{{12}}{{100}} < \frac{{23}}{{100}} < 1 < \frac{{11}}{2}\)
Nhóm 2: \(\begin{array}{l} - \frac{{13}}{{12}}; - \frac{{31}}{{24}}\\ - \frac{{13}}{{12}} = \frac{{ - 26}}{{24}} > \frac{{ - 31}}{{24}} \end{array}\) nên \( - \frac{{13}}{{12}} > - \frac{{31}}{{24}}\)
Vậy: \(\begin{array}{l} - \frac{{31}}{{24}} < - \frac{{13}}{{12}} < \frac{{12}}{{100}} < \frac{{23}}{{100}} < \frac{{11}}{2}\\ \Leftrightarrow - \frac{{31}}{{24}} < - 1\frac{1}{{12}} < \frac{{12}}{{100}} < 23\% < 5\frac{1}{2} \end{array}\)
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