Compare 21/25 and 6/90
21/25 is greater than 6/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
21/25 = 21 × 18/25 × 18 = 378/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
6/90 = 6 × 5/90 × 5 = 30/450 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/450 > 30/450 or 21/25 > 6/90
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