Answers

Add 21/5 and 54/63

1^st number: 4 1/5, 2^nd number: 54/63

21/5 + 54/63 is 177/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 5 × 63 = 315,
   21/5 = 21 × 63/5 × 63 = 1323/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   54/63 = 54 × 5/63 × 5 = 270/315
4. Add the two like fractions:
   1323/315 + 270/315 = 1323 + 270/315 = 1593/315
5. 1593/315 simplified gives 177/35
6. So, 21/5 + 54/63 = 177/35
   In mixed form: 52/35

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