Subtract 6/9 from 1/80, Solve 1/80

Subtract 6/9 from 1/80

1/80 - 6/9 is -157/240.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 80 × 9 = 720,
1/80 = 1 × 9/80 × 9 = 9/720
Likewise, for the 2nd fraction, since 9 × 80 = 720,
6/9 = 6 × 80/9 × 80 = 480/720
Subtract the two like fractions:
9/720 - 480/720 = 9 - 480/720 = -471/720
After reducing the fraction, the answer is -157/240

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