80%+ 1 2/5 ÷4/9 -0,65 tolong jawab dengan cara kakak

[tex]80\% + 1 \frac{2}{5} \div \frac{4}{9} - 0.65 \\ = \frac{4}{5} + \frac{7}{5} \times \frac{9}{4} - \frac{13}{20} \\ = \frac{4}{5} + \frac{63}{20} - \frac{13}{20} \\ = \frac{16}{20} + \frac{63}{20} - \frac{13}{20} \\ = \frac{66}{20} \\ = 3 \frac{6}{20} \\ = 3 \frac{3}{10} \\ = 3,3 \: (a)[/tex]
maaf kalo salah:)

80%+1 2/5:4/9-0,65=
80/100+(7/5:4/9)-65/100=
4/5+(7/5*9/4)-13/20=
4/5+(63/20)-13/20=
4/5+50/20=
16/20+50/20=
66/20=
3 6/20=
3 3/10=
3,3