Answers

Subtract 15/40 from 4/30

4/30 - 15/40 is -29/120.

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,
   4/30 = 4 × 4/30 × 4 = 16/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   15/40 = 15 × 3/40 × 3 = 45/120
4. Subtract the two like fractions:
   16/120 - 45/120 = 16 - 45/120 = -29/120

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