Compare 3/42 and 4/5
3/42 is smaller than 4/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
4/5 = 4 × 42/5 × 42 = 168/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/210 < 168/210 or 3/42 < 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42 and 4/5 3/42 and 8/5 3/84 and 4/5 3/42 and 4/10 9/42 and 4/5 3/42 and 12/5 3/42 and 4/15 15/42 and 4/5 3/42 and 20/5 3/42 and 4/25 21/42 and 4/5 3/42 and 28/5 3/42 and 4/35