Answers

Subtract 56/49 from 30/90

1^st number: 30/90, 2^nd number: 1 7/49

30/90 - 56/49 is -17/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 49 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 90 × 49 = 4410,
   30/90 = 30 × 49/90 × 49 = 1470/4410
3. Likewise, for the 2nd fraction, since 49 × 90 = 4410,
   56/49 = 56 × 90/49 × 90 = 5040/4410
4. Subtract the two like fractions:
   1470/4410 - 5040/4410 = 1470 - 5040/4410 = -3570/4410
5. After reducing the fraction, the answer is -17/21

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