Compare 4/98 and 21/40
4/98 is smaller than 21/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
4/98 = 4 × 20/98 × 20 = 80/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
21/40 = 21 × 49/40 × 49 = 1029/1960 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/1960 < 1029/1960 or 4/98 < 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/98 and 21/40 4/98 and 42/40 4/98 and 21/80 12/98 and 21/40 4/98 and 63/40 20/98 and 21/40 28/98 and 21/40