Compare 21/18 and 2/28
1st number: 1 3/18, 2nd number: 2/28
21/18 is greater than 2/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
2/28 = 2 × 9/28 × 9 = 18/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/252 > 18/252 or 21/18 > 2/28
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