Compare the fractions
3/8
and
15/40

Given Fractions:  
3/8
and
15/40

Since the denominators are not common (not the same), we need to find the Least Common Denominator (LCD), which is equivalent to the Least Common Multiple of 8 and 40:
LCD = LCM(8, 40) = 40
Express the given fractions as equivalent fractions with respect to the LCD (40):
3/8
=
15/40
  and  
15/40
=
15/40
Since the equivalent fractions have common denominators, we can compare the numerators:
15 is equal to 15  (15 = 15)
As a result,  
15/40
  is equal to
15/40
Therefore,  
3/8
  is equal to
15/40
,  
3/8
=
15/40

The solution above and other related solutions were provided by the Compare Fractions Application.