Answers

Subtract 63/40 from 42/75

1^st number: 42/75, 2^nd number: 1 23/40

42/75 - 63/40 is -203/200.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 40 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 75 × 8 = 600,
   42/75 = 42 × 8/75 × 8 = 336/600
3. Likewise, for the 2nd fraction, since 40 × 15 = 600,
   63/40 = 63 × 15/40 × 15 = 945/600
4. Subtract the two like fractions:
   336/600 - 945/600 = 336 - 945/600 = -609/600
5. After reducing the fraction, the answer is -203/200

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