Add 1/21 and 24/42
1/21 + 24/42 is 13/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
24/42 = 24 × 1/42 × 1 = 24/42 - Add the two like fractions:
2/42 + 24/42 = 2 + 24/42 = 26/42 - 26/42 simplified gives 13/21
- So, 1/21 + 24/42 = 13/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+24/42 1/21+48/42 1/42+24/42 1/21+24/84 3/21+24/42 1/21+72/42 1/63+24/42 5/21+24/42 7/21+24/42