Compare 45/75 and 81/7, Which fraction is greater?

Compare 45/75 and 81/7

1^st number: 45/75, 2^nd number: 11 4/7

45/75 is smaller than 81/7

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 75 × 7 = 525,
45/75 = 45 × 7/75 × 7 = 315/525
Likewise, for the 2nd fraction, since 7 × 75 = 525,
81/7 = 81 × 75/7 × 75 = 6075/525
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
315/525 < 6075/525 or 45/75 < 81/7

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