Compare 6/40 and 15/42
6/40 is smaller than 15/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
6/40 = 6 × 21/40 × 21 = 126/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
15/42 = 15 × 20/42 × 20 = 300/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/840 < 300/840 or 6/40 < 15/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40 and 15/42 6/40 and 30/42 6/80 and 15/42 6/40 and 15/84 18/40 and 15/42 6/40 and 45/42 30/40 and 15/42 6/40 and 75/42 42/40 and 15/42