Answers

Subtract 28/90 from 84/80

1^st number: 1 4/80, 2^nd number: 28/90

84/80 - 28/90 is 133/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 90 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   84/80 = 84 × 9/80 × 9 = 756/720
3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
   28/90 = 28 × 8/90 × 8 = 224/720
4. Subtract the two like fractions:
   756/720 - 224/720 = 756 - 224/720 = 532/720
5. After reducing the fraction, the answer is 133/180

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