Compare 80/21 and 12/4
1st number: 3 17/21, 2nd number: 3 0/4
80/21 is greater than 12/4
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
80/21 = 80 × 4/21 × 4 = 320/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
12/4 = 12 × 21/4 × 21 = 252/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 320/84 > 252/84 or 80/21 > 12/4
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