Add 12/30 and 80/10
1st number: 12/30, 2nd number: 8 0/10
12/30 + 80/10 is 42/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
80/10 = 80 × 3/10 × 3 = 240/30 - Add the two like fractions:
12/30 + 240/30 = 12 + 240/30 = 252/30 - 252/30 simplified gives 42/5
- So, 12/30 + 80/10 = 42/5
In mixed form: 82/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+80/10 12/60+80/10 12/30+80/20 36/30+80/10 12/90+80/10 12/30+80/30 60/30+80/10 12/30+80/50 84/30+80/10 12/30+80/70