Add 90/12 and 6/30
1st number: 7 6/12, 2nd number: 6/30
90/12 + 6/30 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 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 30 × 2 = 60,
6/30 = 6 × 2/30 × 2 = 12/60 - Add the two like fractions:
450/60 + 12/60 = 450 + 12/60 = 462/60 - 462/60 simplified gives 77/10
- So, 90/12 + 6/30 = 77/10
In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+12/30 90/24+6/30 90/12+6/60 90/12+18/30 90/36+6/30 90/12+6/90 90/60+6/30 90/12+42/30 90/84+6/30