Add 1/8 and 42/40
1st number: 1/8, 2nd number: 1 2/40
1/8 + 42/40 is 47/40.
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,
1/8 = 1 × 5/8 × 5 = 5/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
5/40 + 42/40 = 5 + 42/40 = 47/40 - So, 1/8 + 42/40 = 47/40
In mixed form: 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8+42/40 1/8+84/40 1/16+42/40 1/8+42/80 3/8+42/40 1/24+42/40 5/8+42/40 1/40+42/40 7/8+42/40 1/56+42/40