Answers

Subtract 50/40 from 28/80

1^st number: 28/80, 2^nd number: 1 10/40

28/80 - 50/40 is -9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 40 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   28/80 = 28 × 1/80 × 1 = 28/80
3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
   50/40 = 50 × 2/40 × 2 = 100/80
4. Subtract the two like fractions:
   28/80 - 100/80 = 28 - 100/80 = -72/80
5. After reducing the fraction, the answer is -9/10

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