Compare 42/40 and 28/84
1st number: 1 2/40, 2nd number: 28/84
42/40 is greater than 28/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
42/40 = 42 × 21/40 × 21 = 882/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
28/84 = 28 × 10/84 × 10 = 280/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 882/840 > 280/840 or 42/40 > 28/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40 and 28/84 42/40 and 56/84 42/80 and 28/84