Compare 48/20 and 21/90
1st number: 2 8/20, 2nd number: 21/90
48/20 is greater than 21/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
48/20 = 48 × 9/20 × 9 = 432/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 432/180 > 42/180 or 48/20 > 21/90
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