Compare 18/42 and 12/28
18/42 is equivalent to 12/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
18/42 = 18 × 2/42 × 2 = 36/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
12/28 = 12 × 3/28 × 3 = 36/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 36/84 = 36/84 or 18/42 = 12/28
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