Compare 42/30 and 20/40
1st number: 1 12/30, 2nd number: 20/40
42/30 is greater than 20/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
42/30 = 42 × 4/30 × 4 = 168/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/120 > 60/120 or 42/30 > 20/40
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