Compare 6/42 and 75/80
6/42 is smaller than 75/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 42 × 40 = 1680,
6/42 = 6 × 40/42 × 40 = 240/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
75/80 = 75 × 21/80 × 21 = 1575/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 240/1680 < 1575/1680 or 6/42 < 75/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42 and 75/80 6/84 and 75/80 18/42 and 75/80 30/42 and 75/80