Add 24/56 and 28/21
1st number: 24/56, 2nd number: 1 7/21
24/56 + 28/21 is 37/21.
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,
24/56 = 24 × 3/56 × 3 = 72/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
28/21 = 28 × 8/21 × 8 = 224/168 - Add the two like fractions:
72/168 + 224/168 = 72 + 224/168 = 296/168 - 296/168 simplified gives 37/21
- So, 24/56 + 28/21 = 37/21
In mixed form: 116/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/56+28/21 24/56+56/21 24/56+28/42 72/56+28/21 24/56+84/21 24/56+28/63