Add 3/8 and 8/10
3/8 + 8/10 is 47/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
3/8 = 3 × 5/8 × 5 = 15/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
8/10 = 8 × 4/10 × 4 = 32/40 - Add the two like fractions:
15/40 + 32/40 = 15 + 32/40 = 47/40 - So, 3/8 + 8/10 = 47/40
In mixed form: 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8+8/10 3/8+16/10 3/16+8/10 3/8+8/20 9/8+8/10 3/8+24/10 3/24+8/10 3/8+8/30 15/8+8/10 3/8+40/10 3/40+8/10 3/8+8/50 21/8+8/10 3/8+56/10 3/56+8/10 3/8+8/70