Answers

Subtract 50/72 from 72/20

1^st number: 3 12/20, 2^nd number: 50/72

72/20 - 50/72 is 523/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 20 × 18 = 360,
   72/20 = 72 × 18/20 × 18 = 1296/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   50/72 = 50 × 5/72 × 5 = 250/360
4. Subtract the two like fractions:
   1296/360 - 250/360 = 1296 - 250/360 = 1046/360
5. After reducing the fraction, the answer is 523/180
6. In mixed form: 2163/180

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