Answers

Subtract 75/72 from 7/15

1^st number: 7/15, 2^nd number: 1 3/72

7/15 - 75/72 is -23/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 15 × 24 = 360,
   7/15 = 7 × 24/15 × 24 = 168/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   75/72 = 75 × 5/72 × 5 = 375/360
4. Subtract the two like fractions:
   168/360 - 375/360 = 168 - 375/360 = -207/360
5. After reducing the fraction, the answer is -23/40

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