Compare 60/80 and 30/42
60/80 is greater than 30/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
60/80 = 60 × 21/80 × 21 = 1260/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
30/42 = 30 × 40/42 × 40 = 1200/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1260/1680 > 1200/1680 or 60/80 > 30/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80 and 60/42 60/80 and 30/84 60/80 and 90/42