Answers

Add 25/10 and 7/84

1^st number: 2 5/10, 2^nd number: 7/84

25/10 + 7/84 is 31/12.

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,
   25/10 = 25 × 42/10 × 42 = 1050/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   7/84 = 7 × 5/84 × 5 = 35/420
4. Add the two like fractions:
   1050/420 + 35/420 = 1050 + 35/420 = 1085/420
5. 1085/420 simplified gives 31/12
6. So, 25/10 + 7/84 = 31/12
   In mixed form: 27/12

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