Add 12/10 and 1/90
1st number: 1 2/10, 2nd number: 1/90
12/10 + 1/90 is 109/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
12/10 = 12 × 9/10 × 9 = 108/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Add the two like fractions:
108/90 + 1/90 = 108 + 1/90 = 109/90 - So, 12/10 + 1/90 = 109/90
In mixed form: 119/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10+1/90 12/10+2/90 12/20+1/90 36/10+1/90 12/10+3/90 12/30+1/90 60/10+1/90 12/10+5/90 12/50+1/90 84/10+1/90 12/10+7/90 12/70+1/90