Add 25/7 and 81/40
1st number: 3 4/7, 2nd number: 2 1/40
25/7 + 81/40 is 1567/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
25/7 = 25 × 40/7 × 40 = 1000/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
1000/280 + 567/280 = 1000 + 567/280 = 1567/280 - So, 25/7 + 81/40 = 1567/280
In mixed form: 5167/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7+81/40 25/14+81/40 25/7+81/80 75/7+81/40 25/21+81/40 25/35+81/40 25/49+81/40