Compare 21/63 and 45/30
1st number: 21/63, 2nd number: 1 15/30
21/63 is smaller than 45/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
45/30 = 45 × 21/30 × 21 = 945/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/630 < 945/630 or 21/63 < 45/30
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