Compare 2/16 and 21/90
2/16 is smaller 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,
2/16 = 2 × 45/16 × 45 = 90/720 - 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
- 90/720 < 168/720 or 2/16 < 21/90
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