Answers

Add 21/84 and 72/7

1^st number: 21/84, 2^nd number: 10 2/7

21/84 + 72/7 is 295/28.

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,
   21/84 = 21 × 1/84 × 1 = 21/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   72/7 = 72 × 12/7 × 12 = 864/84
4. Add the two like fractions:
   21/84 + 864/84 = 21 + 864/84 = 885/84
5. 885/84 simplified gives 295/28
6. So, 21/84 + 72/7 = 295/28
   In mixed form: 1015/28

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