Add 12/5 and 90/10
1st number: 2 2/5, 2nd number: 9 0/10
12/5 + 90/10 is 57/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
12/5 = 12 × 2/5 × 2 = 24/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
90/10 = 90 × 1/10 × 1 = 90/10 - Add the two like fractions:
24/10 + 90/10 = 24 + 90/10 = 114/10 - 114/10 simplified gives 57/5
- So, 12/5 + 90/10 = 57/5
In mixed form: 112/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+90/10 12/10+90/10 12/5+90/20 36/5+90/10 12/15+90/10 12/5+90/30 60/5+90/10 12/25+90/10 12/5+90/50 84/5+90/10 12/35+90/10 12/5+90/70