Add 90/12 and 4/5
1st number: 7 6/12, 2nd number: 4/5
90/12 + 4/5 is 83/10.
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,
4/5 = 4 × 12/5 × 12 = 48/60 - Add the two like fractions:
450/60 + 48/60 = 450 + 48/60 = 498/60 - 498/60 simplified gives 83/10
- So, 90/12 + 4/5 = 83/10
In mixed form: 83/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+8/5 90/24+4/5 90/12+4/10 90/12+12/5 90/36+4/5 90/12+4/15 90/12+20/5 90/60+4/5 90/12+4/25 90/12+28/5 90/84+4/5 90/12+4/35