Answers

Subtract 40/7 from 15/40

1^st number: 15/40, 2^nd number: 5 5/7

15/40 - 40/7 is -299/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 7 is 280
2. For the 1st fraction, since 40 × 7 = 280,
   15/40 = 15 × 7/40 × 7 = 105/280
3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
   40/7 = 40 × 40/7 × 40 = 1600/280
4. Subtract the two fractions:
   105/280 - 1600/280 = 105 - 1600/280 = -1495/280
5. After reducing the fraction, the answer is -299/56

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