Answers

Subtract 42/90 from 36/75

36/75 - 42/90 is 1/75.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 75 × 6 = 450,
   36/75 = 36 × 6/75 × 6 = 216/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   42/90 = 42 × 5/90 × 5 = 210/450
4. Subtract the two like fractions:
   216/450 - 210/450 = 216 - 210/450 = 6/450
5. After reducing the fraction, the answer is 1/75

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