Answers

Subtract 45/42 from 54/40

1^st number: 1 14/40, 2^nd number: 1 3/42

54/40 - 45/42 is 39/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 42 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   54/40 = 54 × 21/40 × 21 = 1134/840
3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
   45/42 = 45 × 20/42 × 20 = 900/840
4. Subtract the two like fractions:
   1134/840 - 900/840 = 1134 - 900/840 = 234/840
5. After reducing the fraction, the answer is 39/140

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