Answers

Add 21/84 and 42/28

1^st number: 21/84, 2^nd number: 1 14/28

21/84 + 42/28 is 7/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 28 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 28 × 3 = 84,
   42/28 = 42 × 3/28 × 3 = 126/84
4. Add the two like fractions:
   21/84 + 126/84 = 21 + 126/84 = 147/84
5. 147/84 simplified gives 7/4
6. So, 21/84 + 42/28 = 7/4
   In mixed form: 13/4

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