Compare 54/15 and 21/12
1st number: 3 9/15, 2nd number: 1 9/12
54/15 is greater than 21/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
54/15 = 54 × 4/15 × 4 = 216/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 216/60 > 105/60 or 54/15 > 21/12
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