Is one fifth less than two sevenths?

Answer 1

To compare these fractions, you have to express them using a common denominator.

The LCM of 5 and 7 is 35.

So rewrite them with denominators of 35.

1/5 = (1/5)(7/7) = 7/35

2/7 = (2/7)(5/5) = 10/35

7 is less than 10.

so 7/35 < 10/35

Therefore 1/5 < 2/7