Add 10/70 and 81/12
1st number: 10/70, 2nd number: 6 9/12
10/70 + 81/12 is 193/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
10/70 = 10 × 6/70 × 6 = 60/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
81/12 = 81 × 35/12 × 35 = 2835/420 - Add the two like fractions:
60/420 + 2835/420 = 60 + 2835/420 = 2895/420 - 2895/420 simplified gives 193/28
- So, 10/70 + 81/12 = 193/28
In mixed form: 625/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70+81/12 10/70+81/24 30/70+81/12 10/70+81/36 50/70+81/12 10/70+81/60 10/70+81/84