Subtract 5/80 from 14/9, Solve 1 5/9

Subtract 5/80 from 14/9

1^st number: 1 5/9, 2^nd number: 5/80

14/9 - 5/80 is 215/144.

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

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 9 × 80 = 720,
14/9 = 14 × 80/9 × 80 = 1120/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
5/80 = 5 × 9/80 × 9 = 45/720
Subtract the two like fractions:
1120/720 - 45/720 = 1120 - 45/720 = 1075/720
After reducing the fraction, the answer is 215/144
In mixed form: 171/144

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad