Answers

Subtract 84/80 from 28/30

1^st number: 28/30, 2^nd number: 1 4/80

28/30 - 84/80 is -7/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 30 × 8 = 240,
   28/30 = 28 × 8/30 × 8 = 224/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   84/80 = 84 × 3/80 × 3 = 252/240
4. Subtract the two like fractions:
   224/240 - 252/240 = 224 - 252/240 = -28/240
5. After reducing the fraction, the answer is -7/60

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