Compare 12/24 and 21/80, Which fraction is greater?

Compare 12/24 and 21/80

12/24 is greater than 21/80

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 80 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 24 × 10 = 240,
12/24 = 12 × 10/24 × 10 = 120/240
Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
120/240 > 63/240 or 12/24 > 21/80

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