Add 90/18 and 12/10
1st number: 5 0/18, 2nd number: 1 2/10
90/18 + 12/10 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
90/18 = 90 × 5/18 × 5 = 450/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
12/10 = 12 × 9/10 × 9 = 108/90 - Add the two like fractions:
450/90 + 108/90 = 450 + 108/90 = 558/90 - 558/90 simplified gives 31/5
- So, 90/18 + 12/10 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+24/10 90/36+12/10 90/18+12/20 90/18+36/10 90/54+12/10 90/18+12/30 90/18+60/10 90/18+12/50 90/18+84/10 90/18+12/70