Answers

Add 7/45 and 84/21

1^st number: 7/45, 2^nd number: 4 0/21

7/45 + 84/21 is 187/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 21 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   7/45 = 7 × 7/45 × 7 = 49/315
3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
   84/21 = 84 × 15/21 × 15 = 1260/315
4. Add the two like fractions:
   49/315 + 1260/315 = 49 + 1260/315 = 1309/315
5. 1309/315 simplified gives 187/45
6. So, 7/45 + 84/21 = 187/45
   In mixed form: 47/45

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