Answers

Add 21/35 and 72/7

1^st number: 21/35, 2^nd number: 10 2/7

21/35 + 72/7 is 381/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 7 is 35
   
   Next, find the equivalent fraction of both fractional numbers with denominator 35
2. For the 1st fraction, since 35 × 1 = 35,
   21/35 = 21 × 1/35 × 1 = 21/35
3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
   72/7 = 72 × 5/7 × 5 = 360/35
4. Add the two like fractions:
   21/35 + 360/35 = 21 + 360/35 = 381/35
5. So, 21/35 + 72/7 = 381/35
   In mixed form: 1031/35

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