Answers

Subtract 20/80 from 42/5

1^st number: 8 2/5, 2^nd number: 20/80

42/5 - 20/80 is 163/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 5 × 16 = 80,
   42/5 = 42 × 16/5 × 16 = 672/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   20/80 = 20 × 1/80 × 1 = 20/80
4. Subtract the two like fractions:
   672/80 - 20/80 = 672 - 20/80 = 652/80
5. After reducing the fraction, the answer is 163/20
6. In mixed form: 83/20

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