Answers

Subtract 6/30 from 7/90

7/90 - 6/30 is -11/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 30 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   7/90 = 7 × 1/90 × 1 = 7/90
3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
   6/30 = 6 × 3/30 × 3 = 18/90
4. Subtract the two like fractions:
   7/90 - 18/90 = 7 - 18/90 = -11/90

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