Answers

Add 21/18 and 75/56

1^st number: 1 3/18, 2^nd number: 1 19/56

21/18 + 75/56 is 421/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 18 × 28 = 504,
   21/18 = 21 × 28/18 × 28 = 588/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   75/56 = 75 × 9/56 × 9 = 675/504
4. Add the two like fractions:
   588/504 + 675/504 = 588 + 675/504 = 1263/504
5. 1263/504 simplified gives 421/168
6. So, 21/18 + 75/56 = 421/168
   In mixed form: 285/168

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