Compare 28/27 and 21/90
1st number: 1 1/27, 2nd number: 21/90
28/27 is greater than 21/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
28/27 = 28 × 10/27 × 10 = 280/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 280/270 > 63/270 or 28/27 > 21/90
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