Compare 90/70 and 28/7
1st number: 1 20/70, 2nd number: 4 0/7
90/70 is smaller than 28/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
28/7 = 28 × 10/7 × 10 = 280/70 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/70 < 280/70 or 90/70 < 28/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70 and 56/7 90/70 and 28/14 90/70 and 84/7 90/70 and 28/21 90/70 and 28/35 90/70 and 28/49