Compare 4/80 and 21/18
1st number: 4/80, 2nd number: 1 3/18
4/80 is smaller than 21/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
4/80 = 4 × 9/80 × 9 = 36/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
21/18 = 21 × 40/18 × 40 = 840/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 36/720 < 840/720 or 4/80 < 21/18
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