Answers

Add 21/75 and 70/63

1^st number: 21/75, 2^nd number: 1 7/63

21/75 + 70/63 is 313/225.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 63 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 75 × 21 = 1575,
   21/75 = 21 × 21/75 × 21 = 441/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   70/63 = 70 × 25/63 × 25 = 1750/1575
4. Add the two like fractions:
   441/1575 + 1750/1575 = 441 + 1750/1575 = 2191/1575
5. 2191/1575 simplified gives 313/225
6. So, 21/75 + 70/63 = 313/225
   In mixed form: 188/225

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