Add 50/40 and 81/28
1st number: 1 10/40, 2nd number: 2 25/28
50/40 + 81/28 is 29/7.
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,
50/40 = 50 × 7/40 × 7 = 350/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
81/28 = 81 × 10/28 × 10 = 810/280 - Add the two like fractions:
350/280 + 810/280 = 350 + 810/280 = 1160/280 - 1160/280 simplified gives 29/7
- So, 50/40 + 81/28 = 29/7
In mixed form: 41/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+81/28 50/40+81/56 50/40+81/84