Compare 21/40 and 1/98
21/40 is greater than 1/98
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
21/40 = 21 × 49/40 × 49 = 1029/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
1/98 = 1 × 20/98 × 20 = 20/1960 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1029/1960 > 20/1960 or 21/40 > 1/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40 and 1/98 21/40 and 2/98 21/80 and 1/98 63/40 and 1/98 21/40 and 3/98 21/40 and 5/98 21/40 and 7/98