Add 3/16 and 42/40
1st number: 3/16, 2nd number: 1 2/40
3/16 + 42/40 is 99/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
3/16 = 3 × 5/16 × 5 = 15/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
42/40 = 42 × 2/40 × 2 = 84/80 - Add the two like fractions:
15/80 + 84/80 = 15 + 84/80 = 99/80 - So, 3/16 + 42/40 = 99/80
In mixed form: 119/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16+42/40 3/16+84/40 3/32+42/40 3/16+42/80 9/16+42/40 3/48+42/40 15/16+42/40 3/80+42/40 21/16+42/40