Answers

Subtract 1/40 from 80/30

1^st number: 2 20/30, 2^nd number: 1/40

80/30 - 1/40 is 317/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 30 × 4 = 120,
   80/30 = 80 × 4/30 × 4 = 320/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   1/40 = 1 × 3/40 × 3 = 3/120
4. Subtract the two like fractions:
   320/120 - 3/120 = 320 - 3/120 = 317/120
5. In mixed form: 277/120

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