Subtract 8/9 from 84/80, Solve 1 4/80

Subtract 8/9 from 84/80

1^st number: 1 4/80, 2^nd number: 8/9

84/80 - 8/9 is 29/180.

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,
84/80 = 84 × 9/80 × 9 = 756/720
Likewise, for the 2nd fraction, since 9 × 80 = 720,
8/9 = 8 × 80/9 × 80 = 640/720
Subtract the two like fractions:
756/720 - 640/720 = 756 - 640/720 = 116/720
After reducing the fraction, the answer is 29/180

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