Answers

Subtract 49/45 from 12/20

1^st number: 12/20, 2^nd number: 1 4/45

12/20 - 49/45 is -22/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   12/20 = 12 × 9/20 × 9 = 108/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   49/45 = 49 × 4/45 × 4 = 196/180
4. Subtract the two like fractions:
   108/180 - 196/180 = 108 - 196/180 = -88/180
5. After reducing the fraction, the answer is -22/45

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