Answers

Subtract 35/90 from 21/25

21/25 - 35/90 is 203/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   21/25 = 21 × 18/25 × 18 = 378/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   35/90 = 35 × 5/90 × 5 = 175/450
4. Subtract the two like fractions:
   378/450 - 175/450 = 378 - 175/450 = 203/450

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