Answers

Subtract 7/5 from 21/75

1^st number: 21/75, 2^nd number: 1 2/5

21/75 - 7/5 is -28/25.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 5 is 75
   
   Next, find the equivalent fraction of both fractional numbers with denominator 75
2. For the 1st fraction, since 75 × 1 = 75,
   21/75 = 21 × 1/75 × 1 = 21/75
3. Likewise, for the 2nd fraction, since 5 × 15 = 75,
   7/5 = 7 × 15/5 × 15 = 105/75
4. Subtract the two like fractions:
   21/75 - 105/75 = 21 - 105/75 = -84/75
5. After reducing the fraction, the answer is -28/25

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