Compare 90/30 and 1/42
1st number: 3 0/30, 2nd number: 1/42
90/30 is greater than 1/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 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 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 630/210 > 5/210 or 90/30 > 1/42
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 2/42 90/60 and 1/42 90/30 and 1/84 90/30 and 3/42 90/30 and 5/42 90/30 and 7/42