Add 21/8 and 14/70
1st number: 2 5/8, 2nd number: 14/70
21/8 + 14/70 is 113/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
21/8 = 21 × 35/8 × 35 = 735/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
14/70 = 14 × 4/70 × 4 = 56/280 - Add the two like fractions:
735/280 + 56/280 = 735 + 56/280 = 791/280 - 791/280 simplified gives 113/40
- So, 21/8 + 14/70 = 113/40
In mixed form: 233/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+14/70 21/8+28/70 21/16+14/70 63/8+14/70 21/8+42/70 21/24+14/70 21/40+14/70 21/8+98/70 21/56+14/70