Compare 15/90 and 18/75
15/90 is smaller than 18/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
15/90 = 15 × 5/90 × 5 = 75/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
18/75 = 18 × 6/75 × 6 = 108/450 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/450 < 108/450 or 15/90 < 18/75
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