Answers

Add 70/15 and 25/72

1^st number: 4 10/15, 2^nd number: 25/72

70/15 + 25/72 is 361/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 15 × 24 = 360,
   70/15 = 70 × 24/15 × 24 = 1680/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   25/72 = 25 × 5/72 × 5 = 125/360
4. Add the two like fractions:
   1680/360 + 125/360 = 1680 + 125/360 = 1805/360
5. 1805/360 simplified gives 361/72
6. So, 70/15 + 25/72 = 361/72
   In mixed form: 51/72

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