Answers

Add 70/10 and 75/84

1^st number: 7 0/10, 2^nd number: 75/84

70/10 + 75/84 is 221/28.

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,
   70/10 = 70 × 42/10 × 42 = 2940/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   75/84 = 75 × 5/84 × 5 = 375/420
4. Add the two like fractions:
   2940/420 + 375/420 = 2940 + 375/420 = 3315/420
5. 3315/420 simplified gives 221/28
6. So, 70/10 + 75/84 = 221/28
   In mixed form: 725/28

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