Subtract 20/18 from 3/80
1st number: 3/80, 2nd number: 1 2/18
3/80 - 20/18 is -773/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
20/18 = 20 × 40/18 × 40 = 800/720 - Subtract the two like fractions:
27/720 - 800/720 = 27 - 800/720 = -773/720
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