Compare 15/10 and 42/30
1st number: 1 5/10, 2nd number: 1 12/30
15/10 is greater than 42/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
15/10 = 15 × 3/10 × 3 = 45/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/30 > 42/30 or 15/10 > 42/30
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