Add 56/45 and 21/56
1st number: 1 11/45, 2nd number: 21/56
56/45 + 21/56 is 583/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
56/45 = 56 × 56/45 × 56 = 3136/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
21/56 = 21 × 45/56 × 45 = 945/2520 - Add the two like fractions:
3136/2520 + 945/2520 = 3136 + 945/2520 = 4081/2520 - 4081/2520 simplified gives 583/360
- So, 56/45 + 21/56 = 583/360
In mixed form: 1223/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+42/56 56/90+21/56 56/45+63/56