Add 90/10 and 28/12
1st number: 9 0/10, 2nd number: 2 4/12
90/10 + 28/12 is 34/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
90/10 = 90 × 6/10 × 6 = 540/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Add the two like fractions:
540/60 + 140/60 = 540 + 140/60 = 680/60 - 680/60 simplified gives 34/3
- So, 90/10 + 28/12 = 34/3
In mixed form: 111/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+56/12 90/20+28/12 90/10+28/24 90/10+84/12 90/30+28/12 90/10+28/36 90/50+28/12 90/10+28/60 90/70+28/12 90/10+28/84