Answers

Subtract 20/63 from 84/75

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

84/75 - 20/63 is 1264/1575.

Steps for subtracting 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,
   84/75 = 84 × 21/75 × 21 = 1764/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   20/63 = 20 × 25/63 × 25 = 500/1575
4. Subtract the two like fractions:
   1764/1575 - 500/1575 = 1764 - 500/1575 = 1264/1575

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