[tex]a) \frac{3}{4} : \frac{2}{5} = \frac{3}{4} \times \frac{5}{2} = \frac{3 \times 5}{4 \times 2} = \frac{15}{8} = 1 \frac{7}{8} [/tex]
[tex]b) \frac{4}{7} : \frac{5}{11} = \frac{4}{7} \times \frac{11}{5} = \frac{4 \times 11}{7 \times 5} = \frac{44}{35} = 1 \frac{9}{35} [/tex]
[tex]c) \frac{7}{25} : \frac{23}{25} = \frac{7}{25} \times \frac{25}{23} = \frac{7 \times 25}{25 \times 23} = { \frac{175}{575} }^{(25} = \frac{7}{23} [/tex]
[tex]d) \frac{3}{17} : \frac{8}{17} = \frac{3}{17} \times \frac{17}{8} = \frac{3 \times 17}{17 \times 8} = { \frac{51}{136} }^{(17} = \frac{3}{8} [/tex]
[tex]e) \frac{8}{75} : \frac{11}{25} = \frac{8}{75} \times \frac{25}{11} = \frac{8 \times 25}{75 \times 11} = { \frac{200}{825} }^{(25} = \frac{8}{33} [/tex]
[tex]f) \frac{13}{36} : \frac{13}{11} = \frac{13}{36} \times \frac{11}{13} = \frac{13 \times 11}{36 \times 13} = { \frac{143}{468} }^{(13} = \frac{11}{36} [/tex]
[tex]g) \frac{16}{19} : \frac{16}{47} = \frac{16}{19} \times \frac{47}{16} = \frac{16 \times 47}{19 \times 16} = { \frac{752}{304} }^{(16} = \frac{47}{19} = 2 \frac{9}{19} [/tex]
[tex]h) \frac{66}{13} : \frac{33}{5} = \frac{66}{13} \times \frac{5}{33} = \frac{66 \times 5}{13 \times 33} = { \frac{330}{429} }^{(33} = \frac{10}{13} [/tex]
