Subtract 28/27 from 5/45
1st number: 5/45, 2nd number: 1 1/27
5/45 - 28/27 is -25/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
5/45 = 5 × 3/45 × 3 = 15/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
28/27 = 28 × 5/27 × 5 = 140/135 - Subtract the two like fractions:
15/135 - 140/135 = 15 - 140/135 = -125/135 - After reducing the fraction, the answer is -25/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45-28/27 5/45-56/27 5/90-28/27 5/45-28/54 15/45-28/27 5/45-84/27 5/45-28/81 25/45-28/27 35/45-28/27