Add 3/15 and 25/42
3/15 + 25/42 is 167/210.
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,
3/15 = 3 × 14/15 × 14 = 42/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
25/42 = 25 × 5/42 × 5 = 125/210 - Add the two like fractions:
42/210 + 125/210 = 42 + 125/210 = 167/210 - So, 3/15 + 25/42 = 167/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+25/42 3/15+50/42 3/30+25/42 3/15+25/84 9/15+25/42 3/15+75/42 3/45+25/42 3/75+25/42 21/15+25/42