Compare 21/3 and 21/20
1st number: 7 0/3, 2nd number: 1 1/20
21/3 is greater than 21/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
21/3 = 21 × 20/3 × 20 = 420/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/60 > 63/60 or 21/3 > 21/20
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