Add 2/21 and 10/18
2/21 + 10/18 is 41/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
2/21 = 2 × 6/21 × 6 = 12/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
10/18 = 10 × 7/18 × 7 = 70/126 - Add the two like fractions:
12/126 + 70/126 = 12 + 70/126 = 82/126 - 82/126 simplified gives 41/63
- So, 2/21 + 10/18 = 41/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+10/18 2/21+20/18 2/42+10/18 2/21+10/36 6/21+10/18 2/21+30/18 2/63+10/18 2/21+10/54 10/21+10/18 2/21+50/18 2/21+10/90 14/21+10/18 2/21+70/18