Compare 21/80 and 4/50
21/80 is greater than 4/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
4/50 = 4 × 8/50 × 8 = 32/400 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/400 > 32/400 or 21/80 > 4/50
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