Answers

Subtract 7/72 from 9/7

1^st number: 1 2/7, 2^nd number: 7/72

9/7 - 7/72 is 599/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 7 × 72 = 504,
   9/7 = 9 × 72/7 × 72 = 648/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   7/72 = 7 × 7/72 × 7 = 49/504
4. Subtract the two like fractions:
   648/504 - 49/504 = 648 - 49/504 = 599/504
5. In mixed form: 195/504

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