Answers

Add 63/20 and 75/84

1^st number: 3 3/20, 2^nd number: 75/84

63/20 + 75/84 is 283/70.

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,
   63/20 = 63 × 21/20 × 21 = 1323/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   75/84 = 75 × 5/84 × 5 = 375/420
4. Add the two like fractions:
   1323/420 + 375/420 = 1323 + 375/420 = 1698/420
5. 1698/420 simplified gives 283/70
6. So, 63/20 + 75/84 = 283/70
   In mixed form: 43/70

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