Answers

Subtract 81/40 from 30/48

1^st number: 30/48, 2^nd number: 2 1/40

30/48 - 81/40 is -7/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 40 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   30/48 = 30 × 5/48 × 5 = 150/240
3. Likewise, for the 2nd fraction, since 40 × 6 = 240,
   81/40 = 81 × 6/40 × 6 = 486/240
4. Subtract the two like fractions:
   150/240 - 486/240 = 150 - 486/240 = -336/240
5. After reducing the fraction, the answer is -7/5

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