Compare 21/16 and 42/45
1st number: 1 5/16, 2nd number: 42/45
21/16 is greater than 42/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
42/45 = 42 × 16/45 × 16 = 672/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 945/720 > 672/720 or 21/16 > 42/45
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