Compare 90/21 and 42/16
1st number: 4 6/21, 2nd number: 2 10/16
90/21 is greater than 42/16
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
42/16 = 42 × 21/16 × 21 = 882/336 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1440/336 > 882/336 or 90/21 > 42/16
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