Compare 72/80 and 40/30, Which fraction is greater?

Compare 72/80 and 40/30

1^st number: 72/80, 2^nd number: 1 10/30

72/80 is smaller than 40/30

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
72/80 = 72 × 3/80 × 3 = 216/240
Likewise, for the 2nd fraction, since 30 × 8 = 240,
40/30 = 40 × 8/30 × 8 = 320/240
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
216/240 < 320/240 or 72/80 < 40/30

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