Add 20/21 and 1/35
20/21 + 1/35 is 103/105.
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,
20/21 = 20 × 5/21 × 5 = 100/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
1/35 = 1 × 3/35 × 3 = 3/105 - Add the two like fractions:
100/105 + 3/105 = 100 + 3/105 = 103/105 - So, 20/21 + 1/35 = 103/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21+1/35 20/21+2/35 20/42+1/35 20/21+1/70 60/21+1/35 20/21+3/35 20/63+1/35 20/21+5/35 20/21+7/35