Question

1/10+1/11+1/12=?

Answer 1

\(\frac{1}{10}+\frac{1}{11}+\frac{1}{12}=\frac{181}{660}\)

Answer 2

\(\frac{1}{10}+\frac{1}{11}+\frac{1}{12}=\frac{11\times12}{10\times11\times12}+\frac{10\times12}{10\times11\times12}+\frac{10\times11}{10\times11\times12}=\frac{132+120+110}{10\times11\times12}=\frac{362}{1320}=\frac{181}{660}\)