Compare 3/12 and 70/40, Which fraction is greater?

Compare 3/12 and 70/40

1^st number: 3/12, 2^nd number: 1 30/40

3/12 is smaller than 70/40

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
3/12 = 3 × 10/12 × 10 = 30/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
30/120 < 210/120 or 3/12 < 70/40

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