Answers

Subtract 8/21 from 21/10

1^st number: 2 1/10, 2^nd number: 8/21

21/10 - 8/21 is 361/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 10 × 21 = 210,
   21/10 = 21 × 21/10 × 21 = 441/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   8/21 = 8 × 10/21 × 10 = 80/210
4. Subtract the two like fractions:
   441/210 - 80/210 = 441 - 80/210 = 361/210
5. In mixed form: 1151/210

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