Add 2/40 and 42/30
1st number: 2/40, 2nd number: 1 12/30
2/40 + 42/30 is 29/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
2/40 = 2 × 3/40 × 3 = 6/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
42/30 = 42 × 4/30 × 4 = 168/120 - Add the two like fractions:
6/120 + 168/120 = 6 + 168/120 = 174/120 - 174/120 simplified gives 29/20
- So, 2/40 + 42/30 = 29/20
In mixed form: 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+42/30 2/40+84/30 2/80+42/30 2/40+42/60 6/40+42/30 2/40+42/90 10/40+42/30 14/40+42/30