Add 15/8 and 18/60
1st number: 1 7/8, 2nd number: 18/60
15/8 + 18/60 is 87/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
18/60 = 18 × 2/60 × 2 = 36/120 - Add the two like fractions:
225/120 + 36/120 = 225 + 36/120 = 261/120 - 261/120 simplified gives 87/40
- So, 15/8 + 18/60 = 87/40
In mixed form: 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+18/60 15/8+36/60 15/16+18/60 45/8+18/60 15/8+54/60 15/24+18/60 75/8+18/60 15/8+90/60 15/40+18/60 15/56+18/60