Compare 12/4 and 21/40
1st number: 3 0/4, 2nd number: 21/40
12/4 is greater than 21/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
12/4 = 12 × 10/4 × 10 = 120/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
21/40 = 21 × 1/40 × 1 = 21/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/40 > 21/40 or 12/4 > 21/40
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