Answers

Subtract 70/15 from 28/80

1^st number: 28/80, 2^nd number: 4 10/15

28/80 - 70/15 is -259/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 15 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 80 × 3 = 240,
   28/80 = 28 × 3/80 × 3 = 84/240
3. Likewise, for the 2nd fraction, since 15 × 16 = 240,
   70/15 = 70 × 16/15 × 16 = 1120/240
4. Subtract the two like fractions:
   84/240 - 1120/240 = 84 - 1120/240 = -1036/240
5. After reducing the fraction, the answer is -259/60

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