Answers

Subtract 56/60 from 70/81

70/81 - 56/60 is -28/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 60 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 81 × 20 = 1620,
   70/81 = 70 × 20/81 × 20 = 1400/1620
3. Likewise, for the 2nd fraction, since 60 × 27 = 1620,
   56/60 = 56 × 27/60 × 27 = 1512/1620
4. Subtract the two like fractions:
   1400/1620 - 1512/1620 = 1400 - 1512/1620 = -112/1620
5. After reducing the fraction, the answer is -28/405

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