Answers

Subtract 20/90 from 35/84

35/84 - 20/90 is 7/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   35/84 = 35 × 15/84 × 15 = 525/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   20/90 = 20 × 14/90 × 14 = 280/1260
4. Subtract the two like fractions:
   525/1260 - 280/1260 = 525 - 280/1260 = 245/1260
5. After reducing the fraction, the answer is 7/36

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