Add 28/14 and 81/4
1st number: 2 0/14, 2nd number: 20 1/4
28/14 + 81/4 is 89/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
28/14 = 28 × 2/14 × 2 = 56/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
81/4 = 81 × 7/4 × 7 = 567/28 - Add the two like fractions:
56/28 + 567/28 = 56 + 567/28 = 623/28 - 623/28 simplified gives 89/4
- So, 28/14 + 81/4 = 89/4
In mixed form: 221/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14+81/4 28/14+81/8 84/14+81/4 28/42+81/4 28/14+81/12 28/70+81/4 28/14+81/20 28/98+81/4 28/14+81/28