Add 1/35 and 15/21
1/35 + 15/21 is 26/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
1/35 = 1 × 3/35 × 3 = 3/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
15/21 = 15 × 5/21 × 5 = 75/105 - Add the two like fractions:
3/105 + 75/105 = 3 + 75/105 = 78/105 - 78/105 simplified gives 26/35
- So, 1/35 + 15/21 = 26/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/35+15/21 1/35+30/21 1/70+15/21 1/35+15/42 3/35+15/21 1/35+45/21 1/35+15/63 5/35+15/21 1/35+75/21 7/35+15/21