Answers

Subtract 80/7 from 15/4

1^st number: 3 3/4, 2^nd number: 11 3/7

15/4 - 80/7 is -215/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 7 is 28
   
   Next, find the equivalent fraction of both fractional numbers with denominator 28
2. For the 1st fraction, since 4 × 7 = 28,
   15/4 = 15 × 7/4 × 7 = 105/28
3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
   80/7 = 80 × 4/7 × 4 = 320/28
4. Subtract the two like fractions:
   105/28 - 320/28 = 105 - 320/28 = -215/28

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