Add 42/40 and 14/20
1st number: 1 2/40, 2nd number: 14/20
42/40 + 14/20 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
14/20 = 14 × 2/20 × 2 = 28/40 - Add the two like fractions:
42/40 + 28/40 = 42 + 28/40 = 70/40 - 70/40 simplified gives 7/4
- So, 42/40 + 14/20 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+14/20 42/40+28/20 42/80+14/20 42/40+14/40 42/40+42/20 42/40+14/60 42/40+70/20 42/40+98/20