Answers

Add 5/84 and 72/10

1^st number: 5/84, 2^nd number: 7 2/10

5/84 + 72/10 is 3049/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 10 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   5/84 = 5 × 5/84 × 5 = 25/420
3. Likewise, for the 2nd fraction, since 10 × 42 = 420,
   72/10 = 72 × 42/10 × 42 = 3024/420
4. Add the two like fractions:
   25/420 + 3024/420 = 25 + 3024/420 = 3049/420
5. So, 5/84 + 72/10 = 3049/420
   In mixed form: 7109/420

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