Answers

Subtract 20/7 from 45/40

1^st number: 1 5/40, 2^nd number: 2 6/7

45/40 - 20/7 is -97/56.

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,
   45/40 = 45 × 7/40 × 7 = 315/280
3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
   20/7 = 20 × 40/7 × 40 = 800/280
4. Subtract the two fractions:
   315/280 - 800/280 = 315 - 800/280 = -485/280
5. After reducing the fraction, the answer is -97/56

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