Answers

Subtract 21/35 from 63/42

1^st number: 1 21/42, 2^nd number: 21/35

63/42 - 21/35 is 9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 35 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   63/42 = 63 × 5/42 × 5 = 315/210
3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
   21/35 = 21 × 6/35 × 6 = 126/210
4. Subtract the two like fractions:
   315/210 - 126/210 = 315 - 126/210 = 189/210
5. After reducing the fraction, the answer is 9/10

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