Answers

Add 40/42 and 70/20

1^st number: 40/42, 2^nd number: 3 10/20

40/42 + 70/20 is 187/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   40/42 = 40 × 10/42 × 10 = 400/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   70/20 = 70 × 21/20 × 21 = 1470/420
4. Add the two like fractions:
   400/420 + 1470/420 = 400 + 1470/420 = 1870/420
5. 1870/420 simplified gives 187/42
6. So, 40/42 + 70/20 = 187/42
   In mixed form: 419/42

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