Add 15/14 and 40/42
1st number: 1 1/14, 2nd number: 40/42
15/14 + 40/42 is 85/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
15/14 = 15 × 3/14 × 3 = 45/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Add the two like fractions:
45/42 + 40/42 = 45 + 40/42 = 85/42 - So, 15/14 + 40/42 = 85/42
In mixed form: 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14+40/42 15/14+80/42 15/28+40/42 15/14+40/84 45/14+40/42 15/42+40/42 75/14+40/42 15/70+40/42 15/98+40/42