Question

[Khách]

tính nhanh:

\(\frac{1}{2}+\frac{3}{4}+\frac{5}{6}+\frac{1}{4}+\frac{1}{2}+\frac{1}{6}\)

Answer 1

[Lê Trần Ngọc Hằng]

ta có 1/2 +3/4+ 5/6+1/4+1/2+/6

= (1/2+1/2)+(1/4+3/4)+(5/6+1/6)

= 1+1+1=3

Answer 2

[ミ★ngũッhoàngッluffy★彡]

(1/2+1/2)+(3/4+1/4)+(5/6+1/6)

1+1+1

3