Subtract 70/45 from 28/27
1st number: 1 1/27, 2nd number: 1 25/45
28/27 - 70/45 is -14/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
28/27 = 28 × 5/27 × 5 = 140/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
70/45 = 70 × 3/45 × 3 = 210/135 - Subtract the two like fractions:
140/135 - 210/135 = 140 - 210/135 = -70/135 - After reducing the fraction, the answer is -14/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27-70/45 28/54-70/45 28/27-70/90 84/27-70/45 28/81-70/45