Question

Which is greater 3/11 or 2/7?

Answer 1

cheap way to know, is make them both the same denominator, by simply multiplying one fraction top and bottom by the denominator of the other, so let's do so then,


`\bf \cfrac{3}{11}\cdot \cfrac{7}{7}\implies \boxed{\cfrac{21}{77}}\qquad \qquad \qquad \qquad \cfrac{2}{7}\cdot \cfrac{11}{11}\implies \boxed{\cfrac{22}{77}}`

so, surely you can see who's larger.