Answers

Add 40/42 and 3/70

40/42 + 3/70 is 209/210.

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,
   40/42 = 40 × 5/42 × 5 = 200/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   3/70 = 3 × 3/70 × 3 = 9/210
4. Add the two like fractions:
   200/210 + 9/210 = 200 + 9/210 = 209/210
5. So, 40/42 + 3/70 = 209/210

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