Compare 80/7 and 21/45
1st number: 11 3/7, 2nd number: 21/45
80/7 is greater than 21/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
80/7 = 80 × 45/7 × 45 = 3600/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
21/45 = 21 × 7/45 × 7 = 147/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 3600/315 > 147/315 or 80/7 > 21/45
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