Answers

Add 21/56 and 80/18

1^st number: 21/56, 2^nd number: 4 8/18

21/56 + 80/18 is 347/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 18 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 56 × 9 = 504,
   21/56 = 21 × 9/56 × 9 = 189/504
3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
   80/18 = 80 × 28/18 × 28 = 2240/504
4. Add the two like fractions:
   189/504 + 2240/504 = 189 + 2240/504 = 2429/504
5. 2429/504 simplified gives 347/72
6. So, 21/56 + 80/18 = 347/72
   In mixed form: 459/72

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