Answers

Subtract 30/20 from 60/72

1^st number: 60/72, 2^nd number: 1 10/20

60/72 - 30/20 is -2/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 20 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   60/72 = 60 × 5/72 × 5 = 300/360
3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
   30/20 = 30 × 18/20 × 18 = 540/360
4. Subtract the two like fractions:
   300/360 - 540/360 = 300 - 540/360 = -240/360
5. After reducing the fraction, the answer is -2/3

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