Compare 5/75 and 28/80, Which fraction is greater?

Compare 5/75 and 28/80

5/75 is smaller than 28/80

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 75 × 16 = 1200,
5/75 = 5 × 16/75 × 16 = 80/1200
Likewise, for the 2nd fraction, since 80 × 15 = 1200,
28/80 = 28 × 15/80 × 15 = 420/1200
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
80/1200 < 420/1200 or 5/75 < 28/80

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