Answers

Add 70/14 and 81/80

1^st number: 5 0/14, 2^nd number: 1 1/80

70/14 + 81/80 is 481/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 14 × 40 = 560,
   70/14 = 70 × 40/14 × 40 = 2800/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   81/80 = 81 × 7/80 × 7 = 567/560
4. Add the two like fractions:
   2800/560 + 567/560 = 2800 + 567/560 = 3367/560
5. 3367/560 simplified gives 481/80
6. So, 70/14 + 81/80 = 481/80
   In mixed form: 61/80

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