Compare 42/90 and 5/12
42/90 is greater than 5/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
42/90 = 42 × 2/90 × 2 = 84/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
5/12 = 5 × 15/12 × 15 = 75/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/180 > 75/180 or 42/90 > 5/12
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