(3,24:9/7-3 1/5:1 1/3):(0,9)

[latex]1)3,24:\frac{9}{7}= \frac{324*7}{100*9}= 2,52\\2)3 \frac{1}{5}:1 \frac{1}{3}= \frac{16}{5}* \frac{3}{4}= \frac{12}{5}=2,4\\3)2,52-2,4=0,12\\4)0,12:0,9= \frac{12}{100}* \frac{10}{9}= \frac{4}{30} [/latex]