[tex] \frac{75}{100} \times x = \frac{35}{100} \times y[/tex]
[tex] \frac{3}{4} \times x = \frac{7}{20} \times y[/tex]
[tex] \frac{3x}{4} = \frac{7y}{20} [/tex]
[tex]3x \times 20 = 7y \times 4[/tex]
[tex]60x = 28y \: | \div 4y[/tex]
[tex] \frac{15x}{y} = 7[/tex]
[tex]15 \times \frac{x}{y} = 7 \: | \div 15[/tex]
[tex] \frac{x}{y} = \frac{7}{15} [/tex]
