Answers

Subtract 84/54 from 42/60

1^st number: 42/60, 2^nd number: 1 30/54

42/60 - 84/54 is -77/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 60 × 9 = 540,
   42/60 = 42 × 9/60 × 9 = 378/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   84/54 = 84 × 10/54 × 10 = 840/540
4. Subtract the two like fractions:
   378/540 - 840/540 = 378 - 840/540 = -462/540
5. After reducing the fraction, the answer is -77/90

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