Question

CH-Number System FIND.- 7½×8½

Answer 1

$7\frac{1}{2} \times 8\frac{1}{2}\\\\=\frac{15}{2} \times \frac{17}{2}\\\\=\frac{255}{4}\\\\=63\frac{3}{4}\\\\=========\\\\(7+\frac{1}{2}) \times (8+\frac{1}{2})\\\\=7 \times 8+7 \times \frac{1}{2}+\frac{1}{2} * 8 +\frac{1}{2} \times \frac{1}{2}\\\\=63\frac{3}{4}$