Answers

Add 84/10 and 42/84

1^st number: 8 4/10, 2^nd number: 42/84

84/10 + 42/84 is 89/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 10 × 42 = 420,
   84/10 = 84 × 42/10 × 42 = 3528/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   42/84 = 42 × 5/84 × 5 = 210/420
4. Add the two like fractions:
   3528/420 + 210/420 = 3528 + 210/420 = 3738/420
5. 3738/420 simplified gives 89/10
6. So, 84/10 + 42/84 = 89/10
   In mixed form: 89/10

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