Compare 21/2 and 25/90
1st number: 10 1/2, 2nd number: 25/90
21/2 is greater than 25/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
21/2 = 21 × 45/2 × 45 = 945/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
25/90 = 25 × 1/90 × 1 = 25/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 945/90 > 25/90 or 21/2 > 25/90
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