Subtract 14/80 from 9/4, Solve 2 1/4

Subtract 14/80 from 9/4

1^st number: 2 1/4, 2^nd number: 14/80

9/4 - 14/80 is 83/40.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 4 × 20 = 80,
9/4 = 9 × 20/4 × 20 = 180/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
14/80 = 14 × 1/80 × 1 = 14/80
Subtract the two like fractions:
180/80 - 14/80 = 180 - 14/80 = 166/80
After reducing the fraction, the answer is 83/40
In mixed form: 23/40

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