Add 4/21 and 4/35
4/21 + 4/35 is 32/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
4/21 = 4 × 5/21 × 5 = 20/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
4/35 = 4 × 3/35 × 3 = 12/105 - Add the two like fractions:
20/105 + 12/105 = 20 + 12/105 = 32/105 - So, 4/21 + 4/35 = 32/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+4/35 4/21+8/35 4/42+4/35 4/21+4/70 12/21+4/35 4/21+12/35 4/63+4/35 20/21+4/35 4/21+20/35 28/21+4/35 4/21+28/35