Answers

Add 15/70 and 42/10

1^st number: 15/70, 2^nd number: 4 2/10

15/70 + 42/10 is 309/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 10 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 70 × 1 = 70,
   15/70 = 15 × 1/70 × 1 = 15/70
3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
   42/10 = 42 × 7/10 × 7 = 294/70
4. Add the two like fractions:
   15/70 + 294/70 = 15 + 294/70 = 309/70
5. So, 15/70 + 42/10 = 309/70
   In mixed form: 429/70

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