Answers

Subtract 21/63 from 42/8

1^st number: 5 2/8, 2^nd number: 21/63

42/8 - 21/63 is 59/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 8 × 63 = 504,
   42/8 = 42 × 63/8 × 63 = 2646/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   21/63 = 21 × 8/63 × 8 = 168/504
4. Subtract the two like fractions:
   2646/504 - 168/504 = 2646 - 168/504 = 2478/504
5. After reducing the fraction, the answer is 59/12
6. In mixed form: 411/12

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