Subtract 70/5 from 18/27
1st number: 18/27, 2nd number: 14 0/5
18/27 - 70/5 is -40/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135 - Likewise, for the 2nd fraction, since 5 × 27 = 135,
70/5 = 70 × 27/5 × 27 = 1890/135 - Subtract the two like fractions:
90/135 - 1890/135 = 90 - 1890/135 = -1800/135 - After reducing the fraction, the answer is -40/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27-70/5 18/54-70/5 18/27-70/10 54/27-70/5 18/81-70/5 18/27-70/15 90/27-70/5 18/27-70/25 18/27-70/35