Answers

Subtract 15/20 from 28/50

28/50 - 15/20 is -19/100.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 20 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 50 × 2 = 100,
   28/50 = 28 × 2/50 × 2 = 56/100
3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
   15/20 = 15 × 5/20 × 5 = 75/100
4. Subtract the two like fractions:
   56/100 - 75/100 = 56 - 75/100 = -19/100

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