Answers

Subtract 4/90 from 6/84

6/84 - 4/90 is 17/630.

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,
   6/84 = 6 × 15/84 × 15 = 90/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   4/90 = 4 × 14/90 × 14 = 56/1260
4. Subtract the two like fractions:
   90/1260 - 56/1260 = 90 - 56/1260 = 34/1260
5. After reducing the fraction, the answer is 17/630

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