Compare 42/16 and 21/90
1st number: 2 10/16, 2nd number: 21/90
42/16 is greater than 21/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
21/90 = 21 × 8/90 × 8 = 168/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1890/720 > 168/720 or 42/16 > 21/90
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