Add 45/16 and 20/25
1st number: 2 13/16, 2nd number: 20/25
45/16 + 20/25 is 289/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
45/16 = 45 × 25/16 × 25 = 1125/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
20/25 = 20 × 16/25 × 16 = 320/400 - Add the two like fractions:
1125/400 + 320/400 = 1125 + 320/400 = 1445/400 - 1445/400 simplified gives 289/80
- So, 45/16 + 20/25 = 289/80
In mixed form: 349/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+20/25 45/16+40/25 45/32+20/25 45/16+20/50 45/16+60/25 45/48+20/25 45/16+20/75 45/80+20/25