Compare 84/2 and 21/40
1st number: 42 0/2, 2nd number: 21/40
84/2 is greater than 21/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
84/2 = 84 × 20/2 × 20 = 1680/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
21/40 = 21 × 1/40 × 1 = 21/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1680/40 > 21/40 or 84/2 > 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2 and 42/40 84/4 and 21/40 84/2 and 21/80 84/2 and 63/40 84/6 and 21/40 84/10 and 21/40 84/14 and 21/40