Add 9/8 and 28/35
1st number: 1 1/8, 2nd number: 28/35
9/8 + 28/35 is 77/40.
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,
9/8 = 9 × 35/8 × 35 = 315/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Add the two like fractions:
315/280 + 224/280 = 315 + 224/280 = 539/280 - 539/280 simplified gives 77/40
- So, 9/8 + 28/35 = 77/40
In mixed form: 137/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+28/35 9/8+56/35 9/16+28/35 9/8+28/70 27/8+28/35 9/8+84/35 9/24+28/35 45/8+28/35 9/40+28/35 63/8+28/35 9/56+28/35