Add 81/28 and 8/10
1st number: 2 25/28, 2nd number: 8/10
81/28 + 8/10 is 517/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
8/10 = 8 × 14/10 × 14 = 112/140 - Add the two like fractions:
405/140 + 112/140 = 405 + 112/140 = 517/140 - So, 81/28 + 8/10 = 517/140
In mixed form: 397/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28+16/10 81/56+8/10 81/28+8/20 81/28+24/10 81/84+8/10 81/28+8/30 81/28+40/10 81/28+8/50 81/28+56/10 81/28+8/70