Answers

Add 81/48 and 40/20

1^st number: 1 33/48, 2^nd number: 2 0/20

81/48 + 40/20 is 59/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 20 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   81/48 = 81 × 5/48 × 5 = 405/240
3. Likewise, for the 2nd fraction, since 20 × 12 = 240,
   40/20 = 40 × 12/20 × 12 = 480/240
4. Add the two like fractions:
   405/240 + 480/240 = 405 + 480/240 = 885/240
5. 885/240 simplified gives 59/16
6. So, 81/48 + 40/20 = 59/16
   In mixed form: 311/16

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