Compare 21/80 and 20/10
1st number: 21/80, 2nd number: 2 0/10
21/80 is smaller than 20/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
21/80 = 21 × 1/80 × 1 = 21/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
20/10 = 20 × 8/10 × 8 = 160/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/80 < 160/80 or 21/80 < 20/10
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