Answers

Add 21/28 and 56/45

1^st number: 21/28, 2^nd number: 1 11/45

21/28 + 56/45 is 359/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   21/28 = 21 × 45/28 × 45 = 945/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   56/45 = 56 × 28/45 × 28 = 1568/1260
4. Add the two like fractions:
   945/1260 + 1568/1260 = 945 + 1568/1260 = 2513/1260
5. 2513/1260 simplified gives 359/180
6. So, 21/28 + 56/45 = 359/180
   In mixed form: 1179/180

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