Compare 80/21 and 18/80
1st number: 3 17/21, 2nd number: 18/80
80/21 is greater than 18/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
80/21 = 80 × 80/21 × 80 = 6400/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
18/80 = 18 × 21/80 × 21 = 378/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 6400/1680 > 378/1680 or 80/21 > 18/80
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