Answers

Subtract 1/80 from 35/20

1^st number: 1 15/20, 2^nd number: 1/80

35/20 - 1/80 is 139/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   35/20 = 35 × 4/20 × 4 = 140/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   1/80 = 1 × 1/80 × 1 = 1/80
4. Subtract the two like fractions:
   140/80 - 1/80 = 140 - 1/80 = 139/80
5. In mixed form: 159/80

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