Compare 49/70 and 18/42
49/70 is greater than 18/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
49/70 = 49 × 3/70 × 3 = 147/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/210 > 90/210 or 49/70 > 18/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70 and 18/42 49/70 and 36/42 49/70 and 18/84 49/70 and 54/42 49/70 and 90/42