Compare 70/4 and 90/20
1st number: 17 2/4, 2nd number: 4 10/20
70/4 is greater than 90/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
70/4 = 70 × 5/4 × 5 = 350/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
90/20 = 90 × 1/20 × 1 = 90/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 350/20 > 90/20 or 70/4 > 90/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8 and 90/20 70/4 and 90/40 70/12 and 90/20 70/4 and 90/60 70/20 and 90/20 70/28 and 90/20