Add 1/21 and 5/56
1/21 + 5/56 is 23/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
1/21 = 1 × 8/21 × 8 = 8/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
5/56 = 5 × 3/56 × 3 = 15/168 - Add the two like fractions:
8/168 + 15/168 = 8 + 15/168 = 23/168 - So, 1/21 + 5/56 = 23/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+5/56 1/21+10/56 1/42+5/56 3/21+5/56 1/21+15/56 1/63+5/56 5/21+5/56 1/21+25/56 7/21+5/56 1/21+35/56