Add 2/40 and 72/28
1st number: 2/40, 2nd number: 2 16/28
2/40 + 72/28 is 367/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
2/40 = 2 × 7/40 × 7 = 14/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
72/28 = 72 × 10/28 × 10 = 720/280 - Add the two like fractions:
14/280 + 720/280 = 14 + 720/280 = 734/280 - 734/280 simplified gives 367/140
- So, 2/40 + 72/28 = 367/140
In mixed form: 287/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+72/28 2/80+72/28 2/40+72/56 6/40+72/28 2/40+72/84 10/40+72/28 14/40+72/28