Answers

Subtract 10/50 from 42/20

1^st number: 2 2/20, 2^nd number: 10/50

42/20 - 10/50 is 19/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 50 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 20 × 5 = 100,
   42/20 = 42 × 5/20 × 5 = 210/100
3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
   10/50 = 10 × 2/50 × 2 = 20/100
4. Subtract the two like fractions:
   210/100 - 20/100 = 210 - 20/100 = 190/100
5. After reducing the fraction, the answer is 19/10
6. In mixed form: 19/10

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