Compare 28/80 and 54/70
28/80 is smaller than 54/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
28/80 = 28 × 7/80 × 7 = 196/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
54/70 = 54 × 8/70 × 8 = 432/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/560 < 432/560 or 28/80 < 54/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80 and 54/70 84/80 and 54/70