Add 7/8 and 28/35
7/8 + 28/35 is 67/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
7/8 = 7 × 35/8 × 35 = 245/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Add the two like fractions:
245/280 + 224/280 = 245 + 224/280 = 469/280 - 469/280 simplified gives 67/40
- So, 7/8 + 28/35 = 67/40
In mixed form: 127/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+28/35 7/8+56/35 7/16+28/35 7/8+28/70 21/8+28/35 7/8+84/35 7/24+28/35 35/8+28/35 7/40+28/35 49/8+28/35 7/56+28/35