Answers

Add 42/15 and 54/70

1^st number: 2 12/15, 2^nd number: 54/70

42/15 + 54/70 is 25/7.

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,
   42/15 = 42 × 14/15 × 14 = 588/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   54/70 = 54 × 3/70 × 3 = 162/210
4. Add the two like fractions:
   588/210 + 162/210 = 588 + 162/210 = 750/210
5. 750/210 simplified gives 25/7
6. So, 42/15 + 54/70 = 25/7
   In mixed form: 34/7

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