Add 15/27 and 70/40
1st number: 15/27, 2nd number: 1 30/40
15/27 + 70/40 is 83/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 27 × 40 = 1080,
15/27 = 15 × 40/27 × 40 = 600/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
70/40 = 70 × 27/40 × 27 = 1890/1080 - Add the two like fractions:
600/1080 + 1890/1080 = 600 + 1890/1080 = 2490/1080 - 2490/1080 simplified gives 83/36
- So, 15/27 + 70/40 = 83/36
In mixed form: 211/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+70/40 15/54+70/40 15/27+70/80 45/27+70/40 15/81+70/40 75/27+70/40