Compare 42/80 and 35/70
42/80 is greater than 35/70
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,
42/80 = 42 × 7/80 × 7 = 294/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
35/70 = 35 × 8/70 × 8 = 280/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/560 > 280/560 or 42/80 > 35/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80 and 35/70