Answers

Subtract 30/20 from 49/90

1^st number: 49/90, 2^nd number: 1 10/20

49/90 - 30/20 is -43/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   49/90 = 49 × 2/90 × 2 = 98/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   30/20 = 30 × 9/20 × 9 = 270/180
4. Subtract the two like fractions:
   98/180 - 270/180 = 98 - 270/180 = -172/180
5. After reducing the fraction, the answer is -43/45

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