Add 25/80 and 70/25
1st number: 25/80, 2nd number: 2 20/25
25/80 + 70/25 is 249/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
25/80 = 25 × 5/80 × 5 = 125/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
70/25 = 70 × 16/25 × 16 = 1120/400 - Add the two like fractions:
125/400 + 1120/400 = 125 + 1120/400 = 1245/400 - 1245/400 simplified gives 249/80
- So, 25/80 + 70/25 = 249/80
In mixed form: 39/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+70/25 25/80+70/50 75/80+70/25 25/80+70/75