Compare 90/30 and 4/7
1st number: 3 0/30, 2nd number: 4/7
90/30 is greater than 4/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
4/7 = 4 × 30/7 × 30 = 120/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 630/210 > 120/210 or 90/30 > 4/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30 and 8/7 90/60 and 4/7 90/30 and 4/14 90/30 and 12/7 90/30 and 4/21 90/30 and 20/7 90/30 and 4/35 90/30 and 28/7 90/30 and 4/49