Answers

Add 12/84 and 72/70

1^st number: 12/84, 2^nd number: 1 2/70

12/84 + 72/70 is 41/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   12/84 = 12 × 5/84 × 5 = 60/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   72/70 = 72 × 6/70 × 6 = 432/420
4. Add the two like fractions:
   60/420 + 432/420 = 60 + 432/420 = 492/420
5. 492/420 simplified gives 41/35
6. So, 12/84 + 72/70 = 41/35
   In mixed form: 16/35

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