Answers

Subtract 20/45 from 42/27

1^st number: 1 15/27, 2^nd number: 20/45

42/27 - 20/45 is 10/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 45 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 27 × 5 = 135,
   42/27 = 42 × 5/27 × 5 = 210/135
3. Likewise, for the 2nd fraction, since 45 × 3 = 135,
   20/45 = 20 × 3/45 × 3 = 60/135
4. Subtract the two like fractions:
   210/135 - 60/135 = 210 - 60/135 = 150/135
5. After reducing the fraction, the answer is 10/9
6. In mixed form: 11/9

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