Answers

Add 40/21 and 80/36

1^st number: 1 19/21, 2^nd number: 2 8/36

40/21 + 80/36 is 260/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 21 × 12 = 252,
   40/21 = 40 × 12/21 × 12 = 480/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   80/36 = 80 × 7/36 × 7 = 560/252
4. Add the two like fractions:
   480/252 + 560/252 = 480 + 560/252 = 1040/252
5. 1040/252 simplified gives 260/63
6. So, 40/21 + 80/36 = 260/63
   In mixed form: 48/63

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