Add 8/15 and 5/42
8/15 + 5/42 is 137/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
8/15 = 8 × 14/15 × 14 = 112/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Add the two like fractions:
112/210 + 25/210 = 112 + 25/210 = 137/210 - So, 8/15 + 5/42 = 137/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15+5/42 8/15+10/42 8/30+5/42 8/15+5/84 24/15+5/42 8/15+15/42 8/45+5/42 40/15+5/42 8/15+25/42 8/75+5/42 56/15+5/42 8/15+35/42