Answers

Add 84/48 and 21/20

1^st number: 1 36/48, 2^nd number: 1 1/20

84/48 + 21/20 is 14/5.

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,
   84/48 = 84 × 5/48 × 5 = 420/240
3. Likewise, for the 2nd fraction, since 20 × 12 = 240,
   21/20 = 21 × 12/20 × 12 = 252/240
4. Add the two like fractions:
   420/240 + 252/240 = 420 + 252/240 = 672/240
5. 672/240 simplified gives 14/5
6. So, 84/48 + 21/20 = 14/5
   In mixed form: 24/5

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