Answers

Add 18/63 and 90/25

1^st number: 18/63, 2^nd number: 3 15/25

18/63 + 90/25 is 136/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 25 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 63 × 25 = 1575,
   18/63 = 18 × 25/63 × 25 = 450/1575
3. Likewise, for the 2nd fraction, since 25 × 63 = 1575,
   90/25 = 90 × 63/25 × 63 = 5670/1575
4. Add the two like fractions:
   450/1575 + 5670/1575 = 450 + 5670/1575 = 6120/1575
5. 6120/1575 simplified gives 136/35
6. So, 18/63 + 90/25 = 136/35
   In mixed form: 331/35

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