Compare 21/18 and 70/9
1st number: 1 3/18, 2nd number: 7 7/9
21/18 is smaller than 70/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
70/9 = 70 × 2/9 × 2 = 140/18 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/18 < 140/18 or 21/18 < 70/9
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