Answers

Subtract 70/63 from 30/49

1^st number: 30/49, 2^nd number: 1 7/63

30/49 - 70/63 is -220/441.

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,
   30/49 = 30 × 9/49 × 9 = 270/441
3. Likewise, for the 2nd fraction, since 63 × 7 = 441,
   70/63 = 70 × 7/63 × 7 = 490/441
4. Subtract the two like fractions:
   270/441 - 490/441 = 270 - 490/441 = -220/441

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