Add 15/8 and 20/25
1st number: 1 7/8, 2nd number: 20/25
15/8 + 20/25 is 107/40.
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,
15/8 = 15 × 25/8 × 25 = 375/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
20/25 = 20 × 8/25 × 8 = 160/200 - Add the two like fractions:
375/200 + 160/200 = 375 + 160/200 = 535/200 - 535/200 simplified gives 107/40
- So, 15/8 + 20/25 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+20/25 15/8+40/25 15/16+20/25 15/8+20/50 45/8+20/25 15/8+60/25 15/24+20/25 15/8+20/75 75/8+20/25 15/40+20/25 15/56+20/25