Compare 7/21 and 9/5
1st number: 7/21, 2nd number: 1 4/5
721 is smaller than 95
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
721 = 7 × 521 × 5 = 35105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
95 = 9 × 215 × 21 = 189105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 35105 < 189105 or 721 < 95
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