Compare 45/20 and 15/8
1st number: 2 5/20, 2nd number: 1 7/8
45/20 is greater than 15/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
45/20 = 45 × 2/20 × 2 = 90/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
15/8 = 15 × 5/8 × 5 = 75/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/40 > 75/40 or 45/20 > 15/8
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