Compare 18/42 and 14/90
18/42 is greater than 14/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
18/42 = 18 × 15/42 × 15 = 270/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
14/90 = 14 × 7/90 × 7 = 98/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/630 > 98/630 or 18/42 > 14/90
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