Answers

Add 25/15 and 54/70

1^st number: 1 10/15, 2^nd number: 54/70

25/15 + 54/70 is 256/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   25/15 = 25 × 14/15 × 14 = 350/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   54/70 = 54 × 3/70 × 3 = 162/210
4. Add the two like fractions:
   350/210 + 162/210 = 350 + 162/210 = 512/210
5. 512/210 simplified gives 256/105
6. So, 25/15 + 54/70 = 256/105
   In mixed form: 246/105

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