Answers

Subtract 72/80 from 30/48

30/48 - 72/80 is -11/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 80 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 80 × 3 = 240,
   72/80 = 72 × 3/80 × 3 = 216/240
4. Subtract the two like fractions:
   150/240 - 216/240 = 150 - 216/240 = -66/240
5. After reducing the fraction, the answer is -11/40

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