Compare 5/21 and 40/12
1st number: 5/21, 2nd number: 3 4/12
521 is smaller than 4012
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
521 = 5 × 421 × 4 = 2084 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
4012 = 40 × 712 × 7 = 28084 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2084 < 28084 or 521 < 4012
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