Question

2​​ 1/2 x2 3/4

Answer 1

\(2\frac{1}{2}\cdot2\frac{3}{4}=\frac{5}{2}\cdot\frac{11}{4}=\frac{55}{8}\)

Answer 2

2 1/2 x 2 3/4 = 2 x 2 + 1 / 2 x 2 x 4 + 3 / 4 = 5/2 x 11/4 = 55/8

Answer 3

Trả lời

\(2\frac{1}{2}x2\frac{3}{4}\)

\(=\frac{5}{2}x\frac{11}{4}\)

\(=\frac{55}{8}\)