Add 7/8 and 21/25
7/8 + 21/25 is 343/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
7/8 = 7 × 25/8 × 25 = 175/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Add the two like fractions:
175/200 + 168/200 = 175 + 168/200 = 343/200 - So, 7/8 + 21/25 = 343/200
In mixed form: 1143/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+21/25 7/8+42/25 7/16+21/25 7/8+21/50 21/8+21/25 7/8+63/25 7/24+21/25 7/8+21/75 35/8+21/25 7/40+21/25 49/8+21/25 7/56+21/25