Compare 7/40 and 1/42
7/40 is greater than 1/42
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,
7/40 = 7 × 21/40 × 21 = 147/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
1/42 = 1 × 20/42 × 20 = 20/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/840 > 20/840 or 7/40 > 1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40 and 1/42 7/40 and 2/42 7/80 and 1/42 7/40 and 1/84 21/40 and 1/42 7/40 and 3/42 35/40 and 1/42 7/40 and 5/42 49/40 and 1/42 7/40 and 7/42