Add 27/18 and 70/80
1st number: 1 9/18, 2nd number: 70/80
27/18 + 70/80 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
27/18 = 27 × 40/18 × 40 = 1080/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
70/80 = 70 × 9/80 × 9 = 630/720 - Add the two like fractions:
1080/720 + 630/720 = 1080 + 630/720 = 1710/720 - 1710/720 simplified gives 19/8
- So, 27/18 + 70/80 = 19/8
In mixed form: 23/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+70/80 27/36+70/80 81/18+70/80 27/54+70/80 27/90+70/80