Answers

Add 3/42 and 25/70

3/42 + 25/70 is 3/7.

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,
   3/42 = 3 × 5/42 × 5 = 15/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   25/70 = 25 × 3/70 × 3 = 75/210
4. Add the two like fractions:
   15/210 + 75/210 = 15 + 75/210 = 90/210
5. 90/210 simplified gives 3/7
6. So, 3/42 + 25/70 = 3/7

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