Jawaban:
[tex]2 \frac{1}{4} + 3.2 - 4 \frac{1}{5} = \frac{9}{4} + \frac{32}{10} - \frac{21}{5} = \\ = \frac{45}{20} + \frac{64}{20} - \frac{84}{20} = \frac{25}{20} = \frac{5}{4} [/tex]
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Jawaban:
[tex]2 \frac{1}{4} + 3.2 - 4 \frac{1}{5} = \frac{9}{4} + \frac{32}{10} - \frac{21}{5} = \\ = \frac{45}{20} + \frac{64}{20} - \frac{84}{20} = \frac{25}{20} = \frac{5}{4} [/tex]