Add 14/40 and 42/60
14/40 + 42/60 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
14/40 = 14 × 3/40 × 3 = 42/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
42/60 = 42 × 2/60 × 2 = 84/120 - Add the two like fractions:
42/120 + 84/120 = 42 + 84/120 = 126/120 - 126/120 simplified gives 21/20
- So, 14/40 + 42/60 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/40+42/60 14/40+84/60 14/80+42/60 42/40+42/60 70/40+42/60 98/40+42/60