Answers

Add 56/21 and 49/80

1^st number: 2 14/21, 2^nd number: 49/80

56/21 + 49/80 is 787/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 21 × 80 = 1680,
   56/21 = 56 × 80/21 × 80 = 4480/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   49/80 = 49 × 21/80 × 21 = 1029/1680
4. Add the two like fractions:
   4480/1680 + 1029/1680 = 4480 + 1029/1680 = 5509/1680
5. 5509/1680 simplified gives 787/240
6. So, 56/21 + 49/80 = 787/240
   In mixed form: 367/240

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