Compare 21/80 and 2/12
21/80 is greater than 2/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
2/12 = 2 × 20/12 × 20 = 40/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/240 > 40/240 or 21/80 > 2/12
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