Compare 30/56 and 18/20
30/56 is smaller than 18/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
30/56 = 30 × 5/56 × 5 = 150/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
18/20 = 18 × 14/20 × 14 = 252/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/280 < 252/280 or 30/56 < 18/20
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