Question

4 phần 9 . 35 phần 118 + 5 phần 9 . 35 phần 118 - 35 phần 118

Answer 1

\(\dfrac{4}{9}\cdot\dfrac{35}{118}+\dfrac{5}{9}\cdot\dfrac{35}{118}-\dfrac{35}{118}\\ =\dfrac{38}{118}\left(\dfrac{4}{9}+\dfrac{5}{9}-1\right)\\ =\dfrac{38}{118}\cdot0=0\)

Answer 2

\(\dfrac{4}{9}\cdot\dfrac{35}{118}+\dfrac{5}{9}\cdot\dfrac{35}{118}-\dfrac{35}{118}\)

\(=\dfrac{35}{118}\left(\dfrac{4}{9}+\dfrac{5}{9}-1\right)\)

=0