Answers

Add 18/63 and 63/40

1^st number: 18/63, 2^nd number: 1 23/40

18/63 + 63/40 is 521/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 40 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 63 × 40 = 2520,
   18/63 = 18 × 40/63 × 40 = 720/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   63/40 = 63 × 63/40 × 63 = 3969/2520
4. Add the two like fractions:
   720/2520 + 3969/2520 = 720 + 3969/2520 = 4689/2520
5. 4689/2520 simplified gives 521/280
6. So, 18/63 + 63/40 = 521/280
   In mixed form: 1241/280

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