Compare 20/72 and 2/7
20/72 is smaller than 2/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
2/7 = 2 × 72/7 × 72 = 144/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 140/504 < 144/504 or 20/72 < 2/7
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