Answers

Add 15/35 and 70/60

1^st number: 15/35, 2^nd number: 1 10/60

15/35 + 70/60 is 67/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 35 × 12 = 420,
   15/35 = 15 × 12/35 × 12 = 180/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   70/60 = 70 × 7/60 × 7 = 490/420
4. Add the two like fractions:
   180/420 + 490/420 = 180 + 490/420 = 670/420
5. 670/420 simplified gives 67/42
6. So, 15/35 + 70/60 = 67/42
   In mixed form: 125/42

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