Answers

Subtract 21/10 from 28/75

1^st number: 28/75, 2^nd number: 2 1/10

28/75 - 21/10 is -259/150.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 10 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 75 × 2 = 150,
   28/75 = 28 × 2/75 × 2 = 56/150
3. Likewise, for the 2nd fraction, since 10 × 15 = 150,
   21/10 = 21 × 15/10 × 15 = 315/150
4. Subtract the two like fractions:
   56/150 - 315/150 = 56 - 315/150 = -259/150

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