Add 1/21 and 10/35
1/21 + 10/35 is 1/3.
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,
1/21 = 1 × 5/21 × 5 = 5/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
10/35 = 10 × 3/35 × 3 = 30/105 - Add the two like fractions:
5/105 + 30/105 = 5 + 30/105 = 35/105 - 35/105 simplified gives 1/3
- So, 1/21 + 10/35 = 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+10/35 1/21+20/35 1/42+10/35 1/21+10/70 3/21+10/35 1/21+30/35 1/63+10/35 5/21+10/35 1/21+50/35 7/21+10/35 1/21+70/35