Compare 45/80 and 20/7
1st number: 45/80, 2nd number: 2 6/7
45/80 is smaller than 20/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
20/7 = 20 × 80/7 × 80 = 1600/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 315/560 < 1600/560 or 45/80 < 20/7
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