Answers

Add 45/42 and 45/70

1^st number: 1 3/42, 2^nd number: 45/70

45/42 + 45/70 is 12/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   45/42 = 45 × 5/42 × 5 = 225/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   45/70 = 45 × 3/70 × 3 = 135/210
4. Add the two like fractions:
   225/210 + 135/210 = 225 + 135/210 = 360/210
5. 360/210 simplified gives 12/7
6. So, 45/42 + 45/70 = 12/7
   In mixed form: 15/7

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