Compare 45/42 and 5/40
1st number: 1 3/42, 2nd number: 5/40
45/42 is greater than 5/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
45/42 = 45 × 20/42 × 20 = 900/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
5/40 = 5 × 21/40 × 21 = 105/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/840 > 105/840 or 45/42 > 5/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42 and 5/40 45/42 and 10/40 45/84 and 5/40 45/42 and 5/80 45/42 and 15/40 45/42 and 25/40 45/42 and 35/40