Compare 70/4 and 30/81, Which fraction is greater?

Compare 70/4 and 30/81

1^st number: 17 2/4, 2^nd number: 30/81

70/4 is greater than 30/81

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324

Next, find the equivalent fraction of both fractional numbers with denominator 324
For the 1st fraction, since 4 × 81 = 324,
70/4 = 70 × 81/4 × 81 = 5670/324
Likewise, for the 2nd fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5670/324 > 120/324 or 70/4 > 30/81

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