Tolong jawab nombor 5-8

5.
[tex] \frac{3}{8} \times 2.5 = \frac{3}{8} \times \frac{25}{10} = \frac{75}{80} = \frac{15}{16} [/tex]
6.
[tex]2.1 \times \frac{2}{5} = \frac{21}{10} \times \frac{2}{5} = \frac{42}{50} = \frac{21}{25} [/tex]
7.
[tex]4.2 \times \frac{3}{7} = \frac{42}{10} \times \frac{3}{7} = \frac{126}{70} = \frac{63}{35} [/tex]
8.
[tex] \frac{3}{4} \times 15\% = \frac{3}{4} \times \frac{15}{100} = \frac{45}{400} = \frac{9}{80} [/tex]

Maaf kalau salah
Saya juga masih belajar
Maaf ya ^_^