Add 12/8 and 21/60
1st number: 1 4/8, 2nd number: 21/60
12/8 + 21/60 is 37/20.
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,
12/8 = 12 × 15/8 × 15 = 180/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
21/60 = 21 × 2/60 × 2 = 42/120 - Add the two like fractions:
180/120 + 42/120 = 180 + 42/120 = 222/120 - 222/120 simplified gives 37/20
- So, 12/8 + 21/60 = 37/20
In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8+21/60 12/8+42/60 12/16+21/60 36/8+21/60 12/8+63/60 12/24+21/60 60/8+21/60 12/40+21/60 84/8+21/60 12/56+21/60