Add 8/56 and 2/21
8/56 + 2/21 is 5/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
8/56 = 8 × 3/56 × 3 = 24/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
2/21 = 2 × 8/21 × 8 = 16/168 - Add the two like fractions:
24/168 + 16/168 = 24 + 16/168 = 40/168 - 40/168 simplified gives 5/21
- So, 8/56 + 2/21 = 5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/56+2/21 8/56+4/21 8/56+2/42 24/56+2/21 8/56+6/21 8/56+2/63 40/56+2/21 8/56+10/21 8/56+14/21