Compare 30/8 and 42/15
1st number: 3 6/8, 2nd number: 2 12/15
30/8 is greater than 42/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
30/8 = 30 × 15/8 × 15 = 450/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
42/15 = 42 × 8/15 × 8 = 336/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/120 > 336/120 or 30/8 > 42/15
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