Add 12/8 and 8/40
1st number: 1 4/8, 2nd number: 8/40
12/8 + 8/40 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
12/8 = 12 × 5/8 × 5 = 60/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Add the two like fractions:
60/40 + 8/40 = 60 + 8/40 = 68/40 - 68/40 simplified gives 17/10
- So, 12/8 + 8/40 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8+8/40 12/8+16/40 12/16+8/40 12/8+8/80 36/8+8/40 12/8+24/40 12/24+8/40 60/8+8/40 12/40+8/40 84/8+8/40 12/8+56/40 12/56+8/40