Answers

Subtract 84/25 from 15/28

1^st number: 15/28, 2^nd number: 3 9/25

15/28 - 84/25 is -1977/700.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 25 is 700
   
   Next, find the equivalent fraction of both fractional numbers with denominator 700
2. For the 1st fraction, since 28 × 25 = 700,
   15/28 = 15 × 25/28 × 25 = 375/700
3. Likewise, for the 2nd fraction, since 25 × 28 = 700,
   84/25 = 84 × 28/25 × 28 = 2352/700
4. Subtract the two like fractions:
   375/700 - 2352/700 = 375 - 2352/700 = -1977/700

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