Add 15/40 and 60/20
1st number: 15/40, 2nd number: 3 0/20
15/40 + 60/20 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
60/20 = 60 × 2/20 × 2 = 120/40 - Add the two like fractions:
15/40 + 120/40 = 15 + 120/40 = 135/40 - 135/40 simplified gives 27/8
- So, 15/40 + 60/20 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+60/20 15/80+60/20 15/40+60/40 45/40+60/20 75/40+60/20