Add 90/12 and 60/5
1st number: 7 6/12, 2nd number: 12 0/5
90/12 + 60/5 is 39/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
60/5 = 60 × 12/5 × 12 = 720/60 - Add the two like fractions:
450/60 + 720/60 = 450 + 720/60 = 1170/60 - 1170/60 simplified gives 39/2
- So, 90/12 + 60/5 = 39/2
In mixed form: 191/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24+60/5 90/12+60/10 90/36+60/5 90/12+60/15 90/60+60/5 90/12+60/25 90/84+60/5 90/12+60/35