Compare 3/42 and 70/30
1st number: 3/42, 2nd number: 2 10/30
3/42 is smaller than 70/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 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 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/210 < 490/210 or 3/42 < 70/30
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 70/30 3/84 and 70/30 3/42 and 70/60 9/42 and 70/30 3/42 and 70/90 15/42 and 70/30 21/42 and 70/30