Answers

Add 70/40 and 49/42

1^st number: 1 30/40, 2^nd number: 1 7/42

70/40 + 49/42 is 35/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 42 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   70/40 = 70 × 21/40 × 21 = 1470/840
3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
   49/42 = 49 × 20/42 × 20 = 980/840
4. Add the two like fractions:
   1470/840 + 980/840 = 1470 + 980/840 = 2450/840
5. 2450/840 simplified gives 35/12
6. So, 70/40 + 49/42 = 35/12
   In mixed form: 211/12

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