Answers

Add 3/21 and 30/35

3/21 + 30/35 is 1/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 35 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   3/21 = 3 × 5/21 × 5 = 15/105
3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
   30/35 = 30 × 3/35 × 3 = 90/105
4. Add the two like fractions:
   15/105 + 90/105 = 15 + 90/105 = 105/105
5. 105/105 simplified gives 1/1
6. So, 3/21 + 30/35 = 1/1

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