Add 80/18 and 7/5
1st number: 4 8/18, 2nd number: 1 2/5
80/18 + 7/5 is 263/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
80/18 = 80 × 5/18 × 5 = 400/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
7/5 = 7 × 18/5 × 18 = 126/90 - Add the two like fractions:
400/90 + 126/90 = 400 + 126/90 = 526/90 - 526/90 simplified gives 263/45
- So, 80/18 + 7/5 = 263/45
In mixed form: 538/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+14/5 80/36+7/5 80/18+7/10 80/18+21/5 80/54+7/5 80/18+7/15 80/18+35/5 80/90+7/5 80/18+7/25 80/18+49/5 80/18+7/35