Compare 3/90 and 20/25
3/90 is smaller than 20/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
3/90 = 3 × 5/90 × 5 = 15/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
20/25 = 20 × 18/25 × 18 = 360/450 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/450 < 360/450 or 3/90 < 20/25
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