tolong dijawab besok mau dikumpul dan cara kerja nya please

Sisa kopi =
[tex]7 \frac{3}{4} + 8 \frac{1}{4} - 13 \frac{1}{2} \\ = \frac{31}{4} + \frac{33}{4} - \frac{27}{2} \\ = \frac{64}{4} - \frac{27}{2} \\ = \frac{64}{4} - \frac{54}{4} \\ = \frac{10}{4} \\ = 2 \frac{2}{10} \\ = 2 \frac{1}{5} \: kwintal[/tex]

7 3/4 + 8 1/4 - 13 1/2

31/4 + 33/4
= 64/4

64/4 - 13 1/2
= 64/4 - 27/2
= 64/4 - 54/4
= 10/4
= 2 2/4
= 2 1/2

Jadi, sisa hasil kebun pak Ali adalah 2 1/2 kw

Smoga membantu :) ^ ^