Answers

Add 8/42 and 15/70

8/42 + 15/70 is 17/42.

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,
   8/42 = 8 × 5/42 × 5 = 40/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   15/70 = 15 × 3/70 × 3 = 45/210
4. Add the two like fractions:
   40/210 + 45/210 = 40 + 45/210 = 85/210
5. 85/210 simplified gives 17/42
6. So, 8/42 + 15/70 = 17/42

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