Compare 18/20 and 2/5
18/20 is greater than 2/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
18/20 = 18 × 1/20 × 1 = 18/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
2/5 = 2 × 4/5 × 4 = 8/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/20 > 8/20 or 18/20 > 2/5
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