Compare 18/8 and 20/42
1st number: 2 2/8, 2nd number: 20/42
18/8 is greater than 20/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
18/8 = 18 × 21/8 × 21 = 378/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
20/42 = 20 × 4/42 × 4 = 80/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/168 > 80/168 or 18/8 > 20/42
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