Add 12/80 and 18/10
1st number: 12/80, 2nd number: 1 8/10
12/80 + 18/10 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
18/10 = 18 × 8/10 × 8 = 144/80 - Add the two like fractions:
12/80 + 144/80 = 12 + 144/80 = 156/80 - 156/80 simplified gives 39/20
- So, 12/80 + 18/10 = 39/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80+18/10 12/80+36/10 12/80+18/20 36/80+18/10 12/80+54/10 12/80+18/30 60/80+18/10 12/80+90/10 12/80+18/50 84/80+18/10 12/80+18/70