Add 21/35 and 14/8
1st number: 21/35, 2nd number: 1 6/8
21/35 + 14/8 is 47/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
14/8 = 14 × 35/8 × 35 = 490/280 - Add the two like fractions:
168/280 + 490/280 = 168 + 490/280 = 658/280 - 658/280 simplified gives 47/20
- So, 21/35 + 14/8 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+14/8 21/35+28/8 21/70+14/8 21/35+14/16 63/35+14/8 21/35+42/8 21/35+14/24 21/35+70/8 21/35+14/40 21/35+98/8 21/35+14/56