Compare 20/42 and 90/36
1st number: 20/42, 2nd number: 2 18/36
20/42 is smaller than 90/36
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
20/42 = 20 × 6/42 × 6 = 120/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/252 < 630/252 or 20/42 < 90/36
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