Answers

Subtract 12/40 from 8/18

8/18 - 12/40 is 13/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 40 is 360
2. For the 1st fraction, since 18 × 20 = 360,
   8/18 = 8 × 20/18 × 20 = 160/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   12/40 = 12 × 9/40 × 9 = 108/360
4. Subtract the two fractions:
   160/360 - 108/360 = 160 - 108/360 = 52/360
5. After reducing the fraction, the answer is 13/90

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