Compare 18/42 and 56/63
18/42 is smaller than 56/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
18/42 = 18 × 3/42 × 3 = 54/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
56/63 = 56 × 2/63 × 2 = 112/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 54/126 < 112/126 or 18/42 < 56/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42 and 56/63 18/84 and 56/63 54/42 and 56/63 90/42 and 56/63