Answers

Subtract 48/72 from 18/70

18/70 - 48/72 is -43/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 70 × 36 = 2520,
   18/70 = 18 × 36/70 × 36 = 648/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   48/72 = 48 × 35/72 × 35 = 1680/2520
4. Subtract the two like fractions:
   648/2520 - 1680/2520 = 648 - 1680/2520 = -1032/2520
5. After reducing the fraction, the answer is -43/105

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