Answers

Subtract 1/72 from 30/84

30/84 - 1/72 is 173/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   30/84 = 30 × 6/84 × 6 = 180/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   1/72 = 1 × 7/72 × 7 = 7/504
4. Subtract the two like fractions:
   180/504 - 7/504 = 180 - 7/504 = 173/504

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