Subtract 25/80 from 2/27, Solve 2/27

Subtract 25/80 from 2/27

2/27 - 25/80 is -103/432.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 27 × 80 = 2160,
2/27 = 2 × 80/27 × 80 = 160/2160
Likewise, for the 2nd fraction, since 80 × 27 = 2160,
25/80 = 25 × 27/80 × 27 = 675/2160
Subtract the two like fractions:
160/2160 - 675/2160 = 160 - 675/2160 = -515/2160
After reducing the fraction, the answer is -103/432

MathStep (Works offline)

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