Answers

Add 84/10 and 54/21

1^st number: 8 4/10, 2^nd number: 2 12/21

84/10 + 54/21 is 384/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 10 × 21 = 210,
   84/10 = 84 × 21/10 × 21 = 1764/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   54/21 = 54 × 10/21 × 10 = 540/210
4. Add the two like fractions:
   1764/210 + 540/210 = 1764 + 540/210 = 2304/210
5. 2304/210 simplified gives 384/35
6. So, 84/10 + 54/21 = 384/35
   In mixed form: 1034/35

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