Add 75/8 and 21/5
1st number: 9 3/8, 2nd number: 4 1/5
75/8 + 21/5 is 543/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
75/8 = 75 × 5/8 × 5 = 375/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
21/5 = 21 × 8/5 × 8 = 168/40 - Add the two like fractions:
375/40 + 168/40 = 375 + 168/40 = 543/40 - So, 75/8 + 21/5 = 543/40
In mixed form: 1323/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/8+42/5 75/16+21/5 75/8+21/10 75/8+63/5 75/24+21/5 75/8+21/15 75/40+21/5 75/8+21/25 75/56+21/5 75/8+21/35