Answers

Subtract 10/54 from 7/45

7/45 - 10/54 is -4/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   7/45 = 7 × 6/45 × 6 = 42/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   10/54 = 10 × 5/54 × 5 = 50/270
4. Subtract the two like fractions:
   42/270 - 50/270 = 42 - 50/270 = -8/270
5. After reducing the fraction, the answer is -4/135

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