Add 80/10 and 12/28
1st number: 8 0/10, 2nd number: 12/28
80/10 + 12/28 is 59/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
80/10 = 80 × 14/10 × 14 = 1120/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
12/28 = 12 × 5/28 × 5 = 60/140 - Add the two like fractions:
1120/140 + 60/140 = 1120 + 60/140 = 1180/140 - 1180/140 simplified gives 59/7
- So, 80/10 + 12/28 = 59/7
In mixed form: 83/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+24/28 80/20+12/28 80/10+12/56 80/10+36/28 80/30+12/28 80/10+12/84 80/10+60/28 80/50+12/28 80/10+84/28 80/70+12/28