Compare 18/90 and 7/30
18/90 is smaller than 7/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 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 30 × 3 = 90,
7/30 = 7 × 3/30 × 3 = 21/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/90 < 21/90 or 18/90 < 7/30
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