Add 12/8 and 84/30
1st number: 1 4/8, 2nd number: 2 24/30
12/8 + 84/30 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
12/8 = 12 × 15/8 × 15 = 180/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
84/30 = 84 × 4/30 × 4 = 336/120 - Add the two like fractions:
180/120 + 336/120 = 180 + 336/120 = 516/120 - 516/120 simplified gives 43/10
- So, 12/8 + 84/30 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8+84/30 12/16+84/30 12/8+84/60 36/8+84/30 12/24+84/30 12/8+84/90 60/8+84/30 12/40+84/30 84/8+84/30 12/56+84/30