Add 3/8 and 15/25
3/8 + 15/25 is 39/40.
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,
3/8 = 3 × 25/8 × 25 = 75/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
15/25 = 15 × 8/25 × 8 = 120/200 - Add the two like fractions:
75/200 + 120/200 = 75 + 120/200 = 195/200 - 195/200 simplified gives 39/40
- So, 3/8 + 15/25 = 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8+15/25 3/8+30/25 3/16+15/25 3/8+15/50 9/8+15/25 3/8+45/25 3/24+15/25 3/8+15/75 15/8+15/25 3/8+75/25 3/40+15/25 21/8+15/25 3/56+15/25