Add 3/40 and 18/8
1st number: 3/40, 2nd number: 2 2/8
3/40 + 18/8 is 93/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
3/40 = 3 × 1/40 × 1 = 3/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
18/8 = 18 × 5/8 × 5 = 90/40 - Add the two like fractions:
3/40 + 90/40 = 3 + 90/40 = 93/40 - So, 3/40 + 18/8 = 93/40
In mixed form: 213/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40+18/8 3/40+36/8 3/80+18/8 3/40+18/16 9/40+18/8 3/40+54/8 3/40+18/24 15/40+18/8 3/40+90/8 3/40+18/40 21/40+18/8 3/40+18/56