Question

1/6 + 7/25 + 5/18

Answer 1

\(\dfrac{1}{6}+\dfrac{7}{25}+\dfrac{5}{18}=\dfrac{1\times150}{6\times150}+\dfrac{7\times36}{25\times36}+\dfrac{5\times50}{18\times50}=\dfrac{150+252+250}{900}=\dfrac{625}{900}=\dfrac{163}{225}\)

Answer 2

   \(\dfrac{1}{6}\) + \(\dfrac{7}{25}\) + \(\dfrac{5}{18}\)  vì 6= 2.3; 25 = 5²; 18 = 2.3²  BCNN(6; 25; 18) =2.3².5² = 450

=\(\dfrac{1.75}{450}\) + \(\dfrac{7.18}{450}\) + \(\dfrac{5.25}{450}\) 

=\(\dfrac{326}{450}\)

=  \(\dfrac{163}{225}\)