Compare 18/90 and 30/15
1st number: 18/90, 2nd number: 2 0/15
18/90 is smaller than 30/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
30/15 = 30 × 6/15 × 6 = 180/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/90 < 180/90 or 18/90 < 30/15
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