Add 81/28 and 7/4
1st number: 2 25/28, 2nd number: 1 3/4
81/28 + 7/4 is 65/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
81/28 = 81 × 1/28 × 1 = 81/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
7/4 = 7 × 7/4 × 7 = 49/28 - Add the two like fractions:
81/28 + 49/28 = 81 + 49/28 = 130/28 - 130/28 simplified gives 65/14
- So, 81/28 + 7/4 = 65/14
In mixed form: 49/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28+14/4 81/56+7/4 81/28+7/8 81/28+21/4 81/84+7/4 81/28+7/12 81/28+35/4 81/28+7/20 81/28+49/4 81/28+7/28