Compare 81/20 and 45/25
1st number: 4 1/20, 2nd number: 1 20/25
81/20 is greater than 45/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
81/20 = 81 × 5/20 × 5 = 405/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
45/25 = 45 × 4/25 × 4 = 180/100 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/100 > 180/100 or 81/20 > 45/25
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