Compare 10/21 and 4/20
1021 is greater than 420
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,
1021 = 10 × 2021 × 20 = 200420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
420 = 4 × 2120 × 21 = 84420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200420 > 84420 or 1021 > 420
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