Compare 4/8 and 21/25
4/8 is smaller than 21/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
4/8 = 4 × 25/8 × 25 = 100/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 100/200 < 168/200 or 4/8 < 21/25
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