Answers

Add 21/4 and 63/30

1^st number: 5 1/4, 2^nd number: 2 3/30

21/4 + 63/30 is 147/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 30 is 60
2. For the 1st fraction, since 4 × 15 = 60,
   21/4 = 21 × 15/4 × 15 = 315/60
3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
   63/30 = 63 × 2/30 × 2 = 126/60
4. Add the two fractions:
   315/60 + 126/60 = 315 + 126/60 = 441/60
5. 441/60 simplified gives 147/20
6. So, 21/4 + 63/30 = 147/20
   In mixed form: 77/20

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