Compare 20/21 and 30/10
1st number: 20/21, 2nd number: 3 0/10
20/21 is smaller than 30/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
20/21 = 20 × 10/21 × 10 = 200/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
30/10 = 30 × 21/10 × 21 = 630/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/210 < 630/210 or 20/21 < 30/10
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