Compare 28/90 and 36/70
28/90 is smaller than 36/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
36/70 = 36 × 9/70 × 9 = 324/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/630 < 324/630 or 28/90 < 36/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90 and 36/70 28/90 and 72/70 84/90 and 36/70