Answers

Subtract 90/40 from 80/75

1^st number: 1 5/75, 2^nd number: 2 10/40

80/75 - 90/40 is -71/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 40 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 75 × 8 = 600,
   80/75 = 80 × 8/75 × 8 = 640/600
3. Likewise, for the 2nd fraction, since 40 × 15 = 600,
   90/40 = 90 × 15/40 × 15 = 1350/600
4. Subtract the two like fractions:
   640/600 - 1350/600 = 640 - 1350/600 = -710/600
5. After reducing the fraction, the answer is -71/60

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