Answers

Add 30/21 and 40/25

1^st number: 1 9/21, 2^nd number: 1 15/25

30/21 + 40/25 is 106/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 25 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   30/21 = 30 × 25/21 × 25 = 750/525
3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
   40/25 = 40 × 21/25 × 21 = 840/525
4. Add the two like fractions:
   750/525 + 840/525 = 750 + 840/525 = 1590/525
5. 1590/525 simplified gives 106/35
6. So, 30/21 + 40/25 = 106/35
   In mixed form: 31/35

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