Compare 9/80 and 20/27, Which fraction is greater?

Compare 9/80 and 20/27

9/80 is smaller than 20/27

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 80 × 27 = 2160,
9/80 = 9 × 27/80 × 27 = 243/2160
Likewise, for the 2nd fraction, since 27 × 80 = 2160,
20/27 = 20 × 80/27 × 80 = 1600/2160
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
243/2160 < 1600/2160 or 9/80 < 20/27

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