Add 70/12 and 63/20
1st number: 5 10/12, 2nd number: 3 3/20
70/12 + 63/20 is 539/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
63/20 = 63 × 3/20 × 3 = 189/60 - Add the two like fractions:
350/60 + 189/60 = 350 + 189/60 = 539/60 - So, 70/12 + 63/20 = 539/60
In mixed form: 859/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24+63/20 70/12+63/40 70/36+63/20 70/12+63/60 70/60+63/20 70/84+63/20