Answers

Subtract 9/20 from 42/36

1^st number: 1 6/36, 2^nd number: 9/20

42/36 - 9/20 is 43/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   42/36 = 42 × 5/36 × 5 = 210/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   9/20 = 9 × 9/20 × 9 = 81/180
4. Subtract the two like fractions:
   210/180 - 81/180 = 210 - 81/180 = 129/180
5. After reducing the fraction, the answer is 43/60

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