Compare 6/21 and 25/72
6/21 is smaller than 25/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
6/21 = 6 × 24/21 × 24 = 144/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
25/72 = 25 × 7/72 × 7 = 175/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144/504 < 175/504 or 6/21 < 25/72
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