Answers

Add 7/45 and 15/7

1^st number: 7/45, 2^nd number: 2 1/7

7/45 + 15/7 is 724/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 7 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 7 × 45 = 315,
   15/7 = 15 × 45/7 × 45 = 675/315
4. Add the two like fractions:
   49/315 + 675/315 = 49 + 675/315 = 724/315
5. So, 7/45 + 15/7 = 724/315
   In mixed form: 294/315

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