Compare 21/8 and 90/63
1st number: 2 5/8, 2nd number: 1 27/63
21/8 is greater than 90/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1323/504 > 720/504 or 21/8 > 90/63
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