Answers

Add 40/84 and 3/70

40/84 + 3/70 is 109/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   40/84 = 40 × 5/84 × 5 = 200/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   3/70 = 3 × 6/70 × 6 = 18/420
4. Add the two like fractions:
   200/420 + 18/420 = 200 + 18/420 = 218/420
5. 218/420 simplified gives 109/210
6. So, 40/84 + 3/70 = 109/210

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