jawablah dengan caranya???

[tex]1 \frac{7}{20} \div 2 \frac{6}{15} [/tex]
[tex] = \frac{27}{20} \div \frac{36}{15} [/tex]
[tex] = \frac{27}{20} \times \frac{15}{36} [/tex]
[tex] = \frac{405}{720} [/tex]
[tex] = \frac{81}{144} [/tex]
[tex] = \frac{27}{48} [/tex]
[tex] = \frac{9}{16} [/tex]