Answers

Subtract 15/4 from 28/30

1^st number: 28/30, 2^nd number: 3 3/4

28/30 - 15/4 is -169/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 4 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 30 × 2 = 60,
   28/30 = 28 × 2/30 × 2 = 56/60
3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
   15/4 = 15 × 15/4 × 15 = 225/60
4. Subtract the two like fractions:
   56/60 - 225/60 = 56 - 225/60 = -169/60

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