Add 35/15 and 4/42
1st number: 2 5/15, 2nd number: 4/42
35/15 + 4/42 is 17/7.
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,
35/15 = 35 × 14/15 × 14 = 490/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Add the two like fractions:
490/210 + 20/210 = 490 + 20/210 = 510/210 - 510/210 simplified gives 17/7
- So, 35/15 + 4/42 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+4/42 35/15+8/42 35/30+4/42 35/15+4/84 35/15+12/42 35/45+4/42 35/15+20/42 35/75+4/42 35/15+28/42