Answers

Add 4/35 and 80/21

1^st number: 4/35, 2^nd number: 3 17/21

4/35 + 80/21 is 412/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 35 × 3 = 105,
   4/35 = 4 × 3/35 × 3 = 12/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   80/21 = 80 × 5/21 × 5 = 400/105
4. Add the two like fractions:
   12/105 + 400/105 = 12 + 400/105 = 412/105
5. So, 4/35 + 80/21 = 412/105
   In mixed form: 397/105

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