Add 81/4 and 2/8
1st number: 20 1/4, 2nd number: 2/8
81/4 + 2/8 is 41/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
81/4 = 81 × 2/4 × 2 = 162/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
2/8 = 2 × 1/8 × 1 = 2/8 - Add the two like fractions:
162/8 + 2/8 = 162 + 2/8 = 164/8 - 164/8 simplified gives 41/2
- So, 81/4 + 2/8 = 41/2
In mixed form: 201/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/4+4/8 81/8+2/8 81/4+2/16 81/4+6/8 81/12+2/8 81/4+2/24 81/4+10/8 81/20+2/8 81/4+2/40 81/4+14/8 81/28+2/8 81/4+2/56