Compare 7/70 and 15/30
7/70 is smaller than 15/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
7/70 = 7 × 3/70 × 3 = 21/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
15/30 = 15 × 7/30 × 7 = 105/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/210 < 105/210 or 7/70 < 15/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70 and 15/30 7/70 and 15/60 21/70 and 15/30 7/70 and 45/30 7/70 and 15/90 35/70 and 15/30 7/70 and 75/30 49/70 and 15/30