Answers

Subtract 63/42 from 25/30

1^st number: 25/30, 2^nd number: 1 21/42

25/30 - 63/42 is -2/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   25/30 = 25 × 7/30 × 7 = 175/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   63/42 = 63 × 5/42 × 5 = 315/210
4. Subtract the two like fractions:
   175/210 - 315/210 = 175 - 315/210 = -140/210
5. After reducing the fraction, the answer is -2/3

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