Answers

Subtract 63/30 from 42/49

1^st number: 42/49, 2^nd number: 2 3/30

42/49 - 63/30 is -87/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 30 is 1470
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1470
2. For the 1st fraction, since 49 × 30 = 1470,
   42/49 = 42 × 30/49 × 30 = 1260/1470
3. Likewise, for the 2nd fraction, since 30 × 49 = 1470,
   63/30 = 63 × 49/30 × 49 = 3087/1470
4. Subtract the two like fractions:
   1260/1470 - 3087/1470 = 1260 - 3087/1470 = -1827/1470
5. After reducing the fraction, the answer is -87/70

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