Answers

Subtract 84/40 from 8/28

1^st number: 8/28, 2^nd number: 2 4/40

8/28 - 84/40 is -127/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 28 × 10 = 280,
   8/28 = 8 × 10/28 × 10 = 80/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   84/40 = 84 × 7/40 × 7 = 588/280
4. Subtract the two like fractions:
   80/280 - 588/280 = 80 - 588/280 = -508/280
5. After reducing the fraction, the answer is -127/70

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