Answers

Subtract 28/18 from 54/40

1^st number: 1 14/40, 2^nd number: 1 10/18

54/40 - 28/18 is -37/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 18 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   54/40 = 54 × 9/40 × 9 = 486/360
3. Likewise, for the 2nd fraction, since 18 × 20 = 360,
   28/18 = 28 × 20/18 × 20 = 560/360
4. Subtract the two like fractions:
   486/360 - 560/360 = 486 - 560/360 = -74/360
5. After reducing the fraction, the answer is -37/180

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