Compare 10/90 and 8/40
10/90 is smaller than 8/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
10/90 = 10 × 4/90 × 4 = 40/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
8/40 = 8 × 9/40 × 9 = 72/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 40/360 < 72/360 or 10/90 < 8/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90 and 8/40 10/90 and 16/40 10/90 and 8/80 30/90 and 8/40 10/90 and 24/40 50/90 and 8/40 70/90 and 8/40 10/90 and 56/40