Compare 20/8 and 21/30
1st number: 2 4/8, 2nd number: 21/30
20/8 is greater than 21/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
21/30 = 21 × 4/30 × 4 = 84/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 300/120 > 84/120 or 20/8 > 21/30
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