Compare 21/84 and 25/40
21/84 is smaller than 25/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
21/84 = 21 × 10/84 × 10 = 210/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
25/40 = 25 × 21/40 × 21 = 525/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/840 < 525/840 or 21/84 < 25/40
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