Add 84/10 and 90/12
1st number: 8 4/10, 2nd number: 7 6/12
84/10 + 90/12 is 159/10.
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,
84/10 = 84 × 6/10 × 6 = 504/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Add the two like fractions:
504/60 + 450/60 = 504 + 450/60 = 954/60 - 954/60 simplified gives 159/10
- So, 84/10 + 90/12 = 159/10
In mixed form: 159/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+90/12 84/10+90/24 84/30+90/12 84/10+90/36 84/50+90/12 84/10+90/60 84/70+90/12 84/10+90/84