bantu jawab dong nomor 8 sama nomor 11 sama cara ya...

no.8
[tex] \frac{11}{2} - \frac{30}{12} \div \frac{5}{2} + \frac{9}{4} [/tex]
[tex] \frac{66 - 30}{12} \div \frac{10 + 9}{4} [/tex]
[tex] \frac{36}{12} \div \frac{19}{4} [/tex]
[tex]3 \times \frac{4}{19} = \frac{12}{19} [/tex]
no. 11
[tex] \frac{2432}{10} \div \frac{38}{100} [/tex]
[tex] \frac{2432}{10} \times \frac{100}{38} = 640[/tex]
yg nomor 8 gatau kok gak ada jawabannya