Answers

Subtract 49/72 from 30/18

1^st number: 1 12/18, 2^nd number: 49/72

30/18 - 49/72 is 71/72.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 18 × 4 = 72,
   30/18 = 30 × 4/18 × 4 = 120/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   49/72 = 49 × 1/72 × 1 = 49/72
4. Subtract the two like fractions:
   120/72 - 49/72 = 120 - 49/72 = 71/72

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