Subtract 25/80 from 40/27, Solve 1 13/27

Subtract 25/80 from 40/27

1^st number: 1 13/27, 2^nd number: 25/80

40/27 - 25/80 is 505/432.

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,
40/27 = 40 × 80/27 × 80 = 3200/2160
Likewise, for the 2nd fraction, since 80 × 27 = 2160,
25/80 = 25 × 27/80 × 27 = 675/2160
Subtract the two like fractions:
3200/2160 - 675/2160 = 3200 - 675/2160 = 2525/2160
After reducing the fraction, the answer is 505/432
In mixed form: 173/432

MathStep (Works offline)

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