Answers

Subtract 7/72 from 45/28

1^st number: 1 17/28, 2^nd number: 7/72

45/28 - 7/72 is 761/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   45/28 = 45 × 18/28 × 18 = 810/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   7/72 = 7 × 7/72 × 7 = 49/504
4. Subtract the two like fractions:
   810/504 - 49/504 = 810 - 49/504 = 761/504
5. In mixed form: 1257/504

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