Answers

Add 70/15 and 72/80

1^st number: 4 10/15, 2^nd number: 72/80

70/15 + 72/80 is 167/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 15 × 16 = 240,
   70/15 = 70 × 16/15 × 16 = 1120/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   72/80 = 72 × 3/80 × 3 = 216/240
4. Add the two like fractions:
   1120/240 + 216/240 = 1120 + 216/240 = 1336/240
5. 1336/240 simplified gives 167/30
6. So, 70/15 + 72/80 = 167/30
   In mixed form: 517/30

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