siapa yg bisa jawab Dari no 11-25 tali Pakai cara

no.11
[tex]3 \frac{1}{2} - \frac{3}{10 } = \frac{7}{2} - \frac{3}{10} = \frac{35}{10} - \frac{3}{10} = 3 \frac{2}{10} = 3 \frac{1}{5} [/tex]

12)3 3/4-6/12=15/4-6/12
=45-6/12=39/12=3 3/12