Answers

Add 7/84 and 42/7

1^st number: 7/84, 2^nd number: 6 0/7

7/84 + 42/7 is 73/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   7/84 = 7 × 1/84 × 1 = 7/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   42/7 = 42 × 12/7 × 12 = 504/84
4. Add the two like fractions:
   7/84 + 504/84 = 7 + 504/84 = 511/84
5. 511/84 simplified gives 73/12
6. So, 7/84 + 42/7 = 73/12
   In mixed form: 61/12

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