Answers

Subtract 5/72 from 4/21

4/21 - 5/72 is 61/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 21 × 24 = 504,
   4/21 = 4 × 24/21 × 24 = 96/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   5/72 = 5 × 7/72 × 7 = 35/504
4. Subtract the two like fractions:
   96/504 - 35/504 = 96 - 35/504 = 61/504

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