Add 9/10 and 20/12
1st number: 9/10, 2nd number: 1 8/12
9/10 + 20/12 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
9/10 = 9 × 6/10 × 6 = 54/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
20/12 = 20 × 5/12 × 5 = 100/60 - Add the two like fractions:
54/60 + 100/60 = 54 + 100/60 = 154/60 - 154/60 simplified gives 77/30
- So, 9/10 + 20/12 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+20/12 9/10+40/12 9/20+20/12 9/10+20/24 27/10+20/12 9/10+60/12 9/30+20/12 9/10+20/36 45/10+20/12 9/50+20/12 9/10+20/60 63/10+20/12 9/70+20/12 9/10+20/84