Answers

Subtract 84/72 from 30/10

1^st number: 3 0/10, 2^nd number: 1 12/72

30/10 - 84/72 is 11/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 10 × 36 = 360,
   30/10 = 30 × 36/10 × 36 = 1080/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   84/72 = 84 × 5/72 × 5 = 420/360
4. Subtract the two like fractions:
   1080/360 - 420/360 = 1080 - 420/360 = 660/360
5. After reducing the fraction, the answer is 11/6
6. In mixed form: 15/6

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