Answers

Add 54/20 and 9/84

1^st number: 2 14/20, 2^nd number: 9/84

54/20 + 9/84 is 393/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   54/20 = 54 × 21/20 × 21 = 1134/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   9/84 = 9 × 5/84 × 5 = 45/420
4. Add the two like fractions:
   1134/420 + 45/420 = 1134 + 45/420 = 1179/420
5. 1179/420 simplified gives 393/140
6. So, 54/20 + 9/84 = 393/140
   In mixed form: 2113/140

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