Add 20/40 and 70/27
1st number: 20/40, 2nd number: 2 16/27
20/40 + 70/27 is 167/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
20/40 = 20 × 27/40 × 27 = 540/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
70/27 = 70 × 40/27 × 40 = 2800/1080 - Add the two like fractions:
540/1080 + 2800/1080 = 540 + 2800/1080 = 3340/1080 - 3340/1080 simplified gives 167/54
- So, 20/40 + 70/27 = 167/54
In mixed form: 35/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+70/27 20/40+70/54 60/40+70/27 20/40+70/81