Compare 1/80 and 40/72
1/80 is smaller than 40/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
1/80 = 1 × 9/80 × 9 = 9/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
40/72 = 40 × 10/72 × 10 = 400/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 9/720 < 400/720 or 1/80 < 40/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/80 and 40/72 1/80 and 80/72 3/80 and 40/72 5/80 and 40/72 7/80 and 40/72