Compare 28/18 and 20/15
1st number: 1 10/18, 2nd number: 1 5/15
28/18 is greater than 20/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
20/15 = 20 × 6/15 × 6 = 120/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 140/90 > 120/90 or 28/18 > 20/15
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