Compare 42/75 and 1/20
42/75 is greater than 1/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
42/75 = 42 × 4/75 × 4 = 168/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
1/20 = 1 × 15/20 × 15 = 15/300 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/300 > 15/300 or 42/75 > 1/20
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