Question

Tính bằng cách thuận tiện nhất

1/6 + 4/9 + 5/6 + 11/16 + 5/9 + 5/16

Answer 1

\(=\left(\dfrac{1}{6}+\dfrac{5}{6}\right)+\left(\dfrac{4}{9}+\dfrac{5}{9}\right)+\left(\dfrac{11}{16}+\dfrac{5}{16}\right)=1+1+1=3\)

Answer 2

\(=\left(\dfrac{1}{6}+\dfrac{5}{6}\right)+\left(\dfrac{4}{9}+\dfrac{5}{9}\right)+\left(\dfrac{11}{16}+\dfrac{5}{16}\right)\\ =1+1+1=3\)

Answer 3

= (1/6+5/6)+(4/9+5/9)+(11/16+5/16)

= 1+1+1

=3

Answer 4

3

Answer 5

1/6+5/6=6/6=1

4/9+5/9=9/9=1

11/16+5/16=16/16=1

1+1+1=3

k cho mình nha