Answers

Add 54/20 and 75/84

1^st number: 2 14/20, 2^nd number: 75/84

54/20 + 75/84 is 503/140.

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,
   75/84 = 75 × 5/84 × 5 = 375/420
4. Add the two like fractions:
   1134/420 + 375/420 = 1134 + 375/420 = 1509/420
5. 1509/420 simplified gives 503/140
6. So, 54/20 + 75/84 = 503/140
   In mixed form: 383/140

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