Add 70/20 and 40/12
1st number: 3 10/20, 2nd number: 3 4/12
70/20 + 40/12 is 41/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
70/20 = 70 × 3/20 × 3 = 210/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Add the two like fractions:
210/60 + 200/60 = 210 + 200/60 = 410/60 - 410/60 simplified gives 41/6
- So, 70/20 + 40/12 = 41/6
In mixed form: 65/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+80/12 70/40+40/12 70/20+40/24 70/60+40/12 70/20+40/36 70/20+40/60 70/20+40/84