Add 84/40 and 63/15
1st number: 2 4/40, 2nd number: 4 3/15
84/40 + 63/15 is 63/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 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 15 × 8 = 120,
63/15 = 63 × 8/15 × 8 = 504/120 - Add the two like fractions:
252/120 + 504/120 = 252 + 504/120 = 756/120 - 756/120 simplified gives 63/10
- So, 84/40 + 63/15 = 63/10
In mixed form: 63/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+63/15 84/40+63/30 84/40+63/45 84/40+63/75