3 2/5*n=1 1/4 tolong jawab ya

[tex]3 \frac{2}{5} \times n = 1 \frac{1}{4} \\ n = 1 \frac{1}{4} \div 3 \frac{2}{5} \\ n = \frac{5}{4} \div \frac{17}{5} \\ n = \frac{5}{4} \times \frac{5}{17} \\ n = \frac{25}{68} [/tex]

jadi,jawabannya adalah 25/68
semoga membantu