Add 27/15 and 25/42
1st number: 1 12/15, 2nd number: 25/42
27/15 + 25/42 is 503/210.
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,
27/15 = 27 × 14/15 × 14 = 378/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
25/42 = 25 × 5/42 × 5 = 125/210 - Add the two like fractions:
378/210 + 125/210 = 378 + 125/210 = 503/210 - So, 27/15 + 25/42 = 503/210
In mixed form: 283/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+25/42 27/15+50/42 27/30+25/42 27/15+25/84 81/15+25/42 27/15+75/42 27/45+25/42 27/75+25/42