Answers

Subtract 42/27 from 50/20

1^st number: 2 10/20, 2^nd number: 1 15/27

50/20 - 42/27 is 17/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   50/20 = 50 × 27/20 × 27 = 1350/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   42/27 = 42 × 20/27 × 20 = 840/540
4. Subtract the two like fractions:
   1350/540 - 840/540 = 1350 - 840/540 = 510/540
5. After reducing the fraction, the answer is 17/18

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