Add 8/18 and 15/42
8/18 + 15/42 is 101/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
15/42 = 15 × 3/42 × 3 = 45/126 - Add the two like fractions:
56/126 + 45/126 = 56 + 45/126 = 101/126 - So, 8/18 + 15/42 = 101/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+15/42 8/18+30/42 8/36+15/42 8/18+15/84 24/18+15/42 8/18+45/42 8/54+15/42 40/18+15/42 8/18+75/42 8/90+15/42 56/18+15/42