Compare 75/90 and 21/49
75/90 is greater than 21/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
75/90 = 75 × 49/90 × 49 = 3675/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
21/49 = 21 × 90/49 × 90 = 1890/4410 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 3675/4410 > 1890/4410 or 75/90 > 21/49
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