Answers

Add 63/12 and 80/70

1^st number: 5 3/12, 2^nd number: 1 10/70

63/12 + 80/70 is 179/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 12 × 35 = 420,
   63/12 = 63 × 35/12 × 35 = 2205/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   80/70 = 80 × 6/70 × 6 = 480/420
4. Add the two like fractions:
   2205/420 + 480/420 = 2205 + 480/420 = 2685/420
5. 2685/420 simplified gives 179/28
6. So, 63/12 + 80/70 = 179/28
   In mixed form: 611/28

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