Compare 42/84 and 1/5
42/84 is greater than 1/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
1/5 = 1 × 84/5 × 84 = 84/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/420 > 84/420 or 42/84 > 1/5
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