Add 70/80 and 80/12
1st number: 70/80, 2nd number: 6 8/12
70/80 + 80/12 is 181/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
80/12 = 80 × 20/12 × 20 = 1600/240 - Add the two like fractions:
210/240 + 1600/240 = 210 + 1600/240 = 1810/240 - 1810/240 simplified gives 181/24
- So, 70/80 + 80/12 = 181/24
In mixed form: 713/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+80/24 70/80+80/36 70/80+80/60 70/80+80/84