Compare 42/84 and 15/9
1st number: 42/84, 2nd number: 1 6/9
42/84 is smaller than 15/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
42/84 = 42 × 3/84 × 3 = 126/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
15/9 = 15 × 28/9 × 28 = 420/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/252 < 420/252 or 42/84 < 15/9
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