Compare 30/8 and 42/20
1st number: 3 6/8, 2nd number: 2 2/20
30/8 is greater than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
42/20 = 42 × 2/20 × 2 = 84/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/40 > 84/40 or 30/8 > 42/20
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