Answers

Subtract 45/40 from 16/30

1^st number: 16/30, 2^nd number: 1 5/40

16/30 - 45/40 is -71/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 30 × 4 = 120,
   16/30 = 16 × 4/30 × 4 = 64/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   45/40 = 45 × 3/40 × 3 = 135/120
4. Subtract the two like fractions:
   64/120 - 135/120 = 64 - 135/120 = -71/120

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