Add 10/5 and 90/12
1st number: 2 0/5, 2nd number: 7 6/12
10/5 + 90/12 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
10/5 = 10 × 12/5 × 12 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Add the two like fractions:
120/60 + 450/60 = 120 + 450/60 = 570/60 - 570/60 simplified gives 19/2
- So, 10/5 + 90/12 = 19/2
In mixed form: 91/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5+90/12 10/5+90/24 30/5+90/12 10/15+90/12 10/5+90/36 50/5+90/12 10/25+90/12 10/5+90/60 70/5+90/12 10/35+90/12 10/5+90/84