tolong pakai caranya ya..

Tolong jadikan terbaik~

[tex] \frac{3}{4} + \frac{2}{5} = 2 \frac{1}{8} + x \\ \frac{23}{20} = \frac{1}{4} + x \\ x = \frac{23}{20} - \frac{1}{4} = \frac{23 - 5}{20} = \frac{18}{20} = \frac{9}{10} [/tex]