bantu jawab no 2? caranya yg dibawah ya yg ada tulisan coretan!

[tex] \frac{3}{8} \times \frac{4}{5} = \frac{12}{40} = \frac{3}{10} [/tex]
[tex] \frac{3}{8} \times \frac{2}{7} = \frac{6}{56} = \frac{3}{28} [/tex]
[tex] \frac{2}{7} \times \frac{9}{10} = \frac{18}{70} = \frac{9}{35} [/tex]
[tex] \frac{4}{5} \times \frac{9}{10} = \frac{36}{50} = \frac{18}{25} [/tex]
[tex] \frac{3}{8} \times \frac{9}{10} = \frac{27}{80} [/tex]