Answers

Add 15/10 and 45/42

1^st number: 1 5/10, 2^nd number: 1 3/42

15/10 + 45/42 is 18/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 10 × 21 = 210,
   15/10 = 15 × 21/10 × 21 = 315/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   45/42 = 45 × 5/42 × 5 = 225/210
4. Add the two like fractions:
   315/210 + 225/210 = 315 + 225/210 = 540/210
5. 540/210 simplified gives 18/7
6. So, 15/10 + 45/42 = 18/7
   In mixed form: 24/7

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