Answers

Subtract 20/40 from 80/18

1^st number: 4 8/18, 2^nd number: 20/40

80/18 - 20/40 is 71/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 18 × 20 = 360,
   80/18 = 80 × 20/18 × 20 = 1600/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   20/40 = 20 × 9/40 × 9 = 180/360
4. Subtract the two like fractions:
   1600/360 - 180/360 = 1600 - 180/360 = 1420/360
5. After reducing the fraction, the answer is 71/18
6. In mixed form: 317/18

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