Compare 25/21 and 30/80
1st number: 1 4/21, 2nd number: 30/80
25/21 is greater than 30/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
25/21 = 25 × 80/21 × 80 = 2000/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
30/80 = 30 × 21/80 × 21 = 630/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2000/1680 > 630/1680 or 25/21 > 30/80
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