Answers

Subtract 1/63 from 21/10

1^st number: 2 1/10, 2^nd number: 1/63

21/10 - 1/63 is 1313/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   21/10 = 21 × 63/10 × 63 = 1323/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   1/63 = 1 × 10/63 × 10 = 10/630
4. Subtract the two like fractions:
   1323/630 - 10/630 = 1323 - 10/630 = 1313/630
5. In mixed form: 253/630

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