Add 12/10 and 7/90
1st number: 1 2/10, 2nd number: 7/90
12/10 + 7/90 is 23/18.
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,
7/90 = 7 × 1/90 × 1 = 7/90 - Add the two like fractions:
108/90 + 7/90 = 108 + 7/90 = 115/90 - 115/90 simplified gives 23/18
- So, 12/10 + 7/90 = 23/18
In mixed form: 15/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10+7/90 12/10+14/90 12/20+7/90 36/10+7/90 12/10+21/90 12/30+7/90 60/10+7/90 12/10+35/90 12/50+7/90 84/10+7/90 12/10+49/90 12/70+7/90