Question

Tính nhanh:

\(\frac{2}{3}\times\frac{1}{2}+\frac{2}{3}\times\frac{1}{2}+\frac{1}{3}\)

Answer 1

\(=\frac{2}{3}.\left(\frac{1}{2}+\frac{1}{2}\right)+\frac{1}{3}\)

\(=\frac{2}{3}.1+\frac{1}{3}\)

\(=1\)

Answer 2

2/3*1/2+2/3*1/2+1/3

=2/3 * (1/2+1/2)+2/3

=1

Answer 3

cách 1

  2/3x1/2+2/3x1/2+1/3

=2/3x(1/2+1/2)+1/3

=2/3x1+1/3

=2/3+1/3

=1

cách 2

  2/3x1/2+2/3x1/2+1/3

=1/3x1+1/3x1+1/3

=1/3x(1+1+1)

=1/3x3

=1

học giỏi nhé

Answer 4

2/3*1/2+2/3*1/2+1/3

=1/3+1/3+1/3

=1/3*3

=1