Answers

Subtract 40/14 from 20/45

1^st number: 20/45, 2^nd number: 2 12/14

20/45 - 40/14 is -152/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 14 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   20/45 = 20 × 14/45 × 14 = 280/630
3. Likewise, for the 2nd fraction, since 14 × 45 = 630,
   40/14 = 40 × 45/14 × 45 = 1800/630
4. Subtract the two like fractions:
   280/630 - 1800/630 = 280 - 1800/630 = -1520/630
5. After reducing the fraction, the answer is -152/63

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