Answers

Subtract 54/45 from 45/70

1^st number: 45/70, 2^nd number: 1 9/45

45/70 - 54/45 is -39/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   45/70 = 45 × 9/70 × 9 = 405/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   54/45 = 54 × 14/45 × 14 = 756/630
4. Subtract the two like fractions:
   405/630 - 756/630 = 405 - 756/630 = -351/630
5. After reducing the fraction, the answer is -39/70

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