Answers

Add 72/70 and 2/84

1^st number: 1 2/70, 2^nd number: 2/84

72/70 + 2/84 is 221/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   72/70 = 72 × 6/70 × 6 = 432/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   2/84 = 2 × 5/84 × 5 = 10/420
4. Add the two like fractions:
   432/420 + 10/420 = 432 + 10/420 = 442/420
5. 442/420 simplified gives 221/210
6. So, 72/70 + 2/84 = 221/210
   In mixed form: 111/210

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