Compare 7/9 and 21/10
1st number: 7/9, 2nd number: 2 1/10
79 is smaller than 2110
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
79 = 7 × 109 × 10 = 7090 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
2110 = 21 × 910 × 9 = 18990 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 7090 < 18990 or 79 < 2110
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