Answers

Subtract 70/63 from 12/49

1^st number: 12/49, 2^nd number: 1 7/63

12/49 - 70/63 is -382/441.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 63 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 49 × 9 = 441,
   12/49 = 12 × 9/49 × 9 = 108/441
3. Likewise, for the 2nd fraction, since 63 × 7 = 441,
   70/63 = 70 × 7/63 × 7 = 490/441
4. Subtract the two like fractions:
   108/441 - 490/441 = 108 - 490/441 = -382/441

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