Answers

Add 90/63 and 70/75

1^st number: 1 27/63, 2^nd number: 70/75

90/63 + 70/75 is 248/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 75 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 63 × 25 = 1575,
   90/63 = 90 × 25/63 × 25 = 2250/1575
3. Likewise, for the 2nd fraction, since 75 × 21 = 1575,
   70/75 = 70 × 21/75 × 21 = 1470/1575
4. Add the two like fractions:
   2250/1575 + 1470/1575 = 2250 + 1470/1575 = 3720/1575
5. 3720/1575 simplified gives 248/105
6. So, 90/63 + 70/75 = 248/105
   In mixed form: 238/105

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