Answers

Add 70/12 and 72/80

1^st number: 5 10/12, 2^nd number: 72/80

70/12 + 72/80 is 101/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 12 × 20 = 240,
   70/12 = 70 × 20/12 × 20 = 1400/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   72/80 = 72 × 3/80 × 3 = 216/240
4. Add the two like fractions:
   1400/240 + 216/240 = 1400 + 216/240 = 1616/240
5. 1616/240 simplified gives 101/15
6. So, 70/12 + 72/80 = 101/15
   In mixed form: 611/15

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