Add 84/40 and 9/30
1st number: 2 4/40, 2nd number: 9/30
84/40 + 9/30 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
9/30 = 9 × 4/30 × 4 = 36/120 - Add the two like fractions:
252/120 + 36/120 = 252 + 36/120 = 288/120 - 288/120 simplified gives 12/5
- So, 84/40 + 9/30 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+18/30 84/80+9/30 84/40+9/60 84/40+27/30 84/40+9/90 84/40+45/30 84/40+63/30