Compare 28/84 and 20/42
28/84 is smaller than 20/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
28/84 = 28 × 1/84 × 1 = 28/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 28/84 < 40/84 or 28/84 < 20/42
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