Answers

Subtract 72/63 from 14/80

1^st number: 14/80, 2^nd number: 1 9/63

14/80 - 72/63 is -271/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 63 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 80 × 63 = 5040,
   14/80 = 14 × 63/80 × 63 = 882/5040
3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
   72/63 = 72 × 80/63 × 80 = 5760/5040
4. Subtract the two like fractions:
   882/5040 - 5760/5040 = 882 - 5760/5040 = -4878/5040
5. After reducing the fraction, the answer is -271/280

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