Answers

Subtract 42/54 from 42/40

1^st number: 1 2/40, 2^nd number: 42/54

42/40 - 42/54 is 49/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   42/40 = 42 × 27/40 × 27 = 1134/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   42/54 = 42 × 20/54 × 20 = 840/1080
4. Subtract the two like fractions:
   1134/1080 - 840/1080 = 1134 - 840/1080 = 294/1080
5. After reducing the fraction, the answer is 49/180

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