Answers

Add 25/42 and 35/70

25/42 + 35/70 is 23/21.

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,
   25/42 = 25 × 5/42 × 5 = 125/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   35/70 = 35 × 3/70 × 3 = 105/210
4. Add the two like fractions:
   125/210 + 105/210 = 125 + 105/210 = 230/210
5. 230/210 simplified gives 23/21
6. So, 25/42 + 35/70 = 23/21
   In mixed form: 12/21

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