Add 15/40 and 63/60
1st number: 15/40, 2nd number: 1 3/60
15/40 + 63/60 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
63/60 = 63 × 2/60 × 2 = 126/120 - Add the two like fractions:
45/120 + 126/120 = 45 + 126/120 = 171/120 - 171/120 simplified gives 57/40
- So, 15/40 + 63/60 = 57/40
In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+63/60 15/80+63/60 45/40+63/60 75/40+63/60