Answers

Subtract 35/54 from 18/21

18/21 - 35/54 is 79/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   18/21 = 18 × 18/21 × 18 = 324/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   35/54 = 35 × 7/54 × 7 = 245/378
4. Subtract the two like fractions:
   324/378 - 245/378 = 324 - 245/378 = 79/378

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