Add 18/80 and 25/8
1st number: 18/80, 2nd number: 3 1/8
18/80 + 25/8 is 67/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 8 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
25/8 = 25 × 10/8 × 10 = 250/80 - Add the two like fractions:
18/80 + 250/80 = 18 + 250/80 = 268/80 - 268/80 simplified gives 67/20
- So, 18/80 + 25/8 = 67/20
In mixed form: 37/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+25/8 18/80+50/8 18/80+25/16 54/80+25/8 18/80+75/8 18/80+25/24 90/80+25/8 18/80+25/40 18/80+25/56