Add 15/24 and 40/42
15/24 + 40/42 is 265/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
15/24 = 15 × 7/24 × 7 = 105/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
40/42 = 40 × 4/42 × 4 = 160/168 - Add the two like fractions:
105/168 + 160/168 = 105 + 160/168 = 265/168 - So, 15/24 + 40/42 = 265/168
In mixed form: 197/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24+40/42 15/24+80/42 15/48+40/42 15/24+40/84 45/24+40/42 15/72+40/42 75/24+40/42