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Penjelasan dengan langkah-langkah:

3).

[tex]1 \frac{5}{20} \times 2 \frac{9}{18} = (1 \times 2) + ( \frac{5 \times 9}{20 \times 8} )[/tex]

[tex] = 2 + \frac{45}{360} = 2 \frac{45}{360} [/tex]

4).

[tex] \frac{12}{20} \div \frac{10}{16} = \frac{12}{20} \times \frac{16}{10} = \frac{12 \times 16}{20 \times 10} [/tex]

[tex] = \frac{192}{200} = \frac{48}{50} = \frac{24}{25} [/tex]

5).

[tex]4 \frac{4}{9} \div \frac{6}{24} = \frac{40}{9} \div \frac{6}{24} = \frac{40}{9} \times \frac{24}{6} = \frac{960}{54} [/tex]

[tex] = \frac{480}{27} = \frac{160}{9} = 17 \frac{7}{9} [/tex]