Compare 21/9 and 72/84
1st number: 2 3/9, 2nd number: 72/84
21/9 is greater than 72/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
21/9 = 21 × 28/9 × 28 = 588/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
72/84 = 72 × 3/84 × 3 = 216/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 588/252 > 216/252 or 21/9 > 72/84
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