Add 9/7 and 28/8
1st number: 1 2/7, 2nd number: 3 4/8
9/7 + 28/8 is 67/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
9/7 = 9 × 8/7 × 8 = 72/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
28/8 = 28 × 7/8 × 7 = 196/56 - Add the two like fractions:
72/56 + 196/56 = 72 + 196/56 = 268/56 - 268/56 simplified gives 67/14
- So, 9/7 + 28/8 = 67/14
In mixed form: 411/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+28/8 9/7+56/8 9/14+28/8 9/7+28/16 27/7+28/8 9/7+84/8 9/21+28/8 9/7+28/24 45/7+28/8 9/35+28/8 9/7+28/40 63/7+28/8 9/49+28/8 9/7+28/56