Answers

Add 80/75 and 21/63

1^st number: 1 5/75, 2^nd number: 21/63

80/75 + 21/63 is 7/5.

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,
   80/75 = 80 × 21/75 × 21 = 1680/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   21/63 = 21 × 25/63 × 25 = 525/1575
4. Add the two like fractions:
   1680/1575 + 525/1575 = 1680 + 525/1575 = 2205/1575
5. 2205/1575 simplified gives 7/5
6. So, 80/75 + 21/63 = 7/5
   In mixed form: 12/5

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