Answers

Subtract 90/40 from 90/60

1^st number: 1 30/60, 2^nd number: 2 10/40

90/60 - 90/40 is -3/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 60 × 2 = 120,
   90/60 = 90 × 2/60 × 2 = 180/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   90/40 = 90 × 3/40 × 3 = 270/120
4. Subtract the two like fractions:
   180/120 - 270/120 = 180 - 270/120 = -90/120
5. After reducing the fraction, the answer is -3/4

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