Compare 50/21 and 42/20
1st number: 2 8/21, 2nd number: 2 2/20
50/21 is greater than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
50/21 = 50 × 20/21 × 20 = 1000/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
42/20 = 42 × 21/20 × 21 = 882/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1000/420 > 882/420 or 50/21 > 42/20
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