Answers

Add 20/75 and 72/63

1^st number: 20/75, 2^nd number: 1 9/63

20/75 + 72/63 is 148/105.

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,
   20/75 = 20 × 21/75 × 21 = 420/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   72/63 = 72 × 25/63 × 25 = 1800/1575
4. Add the two like fractions:
   420/1575 + 1800/1575 = 420 + 1800/1575 = 2220/1575
5. 2220/1575 simplified gives 148/105
6. So, 20/75 + 72/63 = 148/105
   In mixed form: 143/105

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