Answers

Subtract 60/84 from 15/40

15/40 - 60/84 is -19/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 84 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   15/40 = 15 × 21/40 × 21 = 315/840
3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
   60/84 = 60 × 10/84 × 10 = 600/840
4. Subtract the two like fractions:
   315/840 - 600/840 = 315 - 600/840 = -285/840
5. After reducing the fraction, the answer is -19/56

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