Compare 21/27 and 15/10
1st number: 21/27, 2nd number: 1 5/10
21/27 is smaller than 15/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
15/10 = 15 × 27/10 × 27 = 405/270 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/270 < 405/270 or 21/27 < 15/10
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