Answers

Subtract 63/16 from 7/40

1^st number: 7/40, 2^nd number: 3 15/16

7/40 - 63/16 is -301/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 16 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   7/40 = 7 × 2/40 × 2 = 14/80
3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
   63/16 = 63 × 5/16 × 5 = 315/80
4. Subtract the two like fractions:
   14/80 - 315/80 = 14 - 315/80 = -301/80

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