Subtract 70/50 from 20/27
1st number: 20/27, 2nd number: 1 20/50
20/27 - 70/50 is -89/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 50 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 27 × 50 = 1350,
20/27 = 20 × 50/27 × 50 = 1000/1350 - Likewise, for the 2nd fraction, since 50 × 27 = 1350,
70/50 = 70 × 27/50 × 27 = 1890/1350 - Subtract the two like fractions:
1000/1350 - 1890/1350 = 1000 - 1890/1350 = -890/1350 - After reducing the fraction, the answer is -89/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/27-70/50 20/54-70/50 60/27-70/50 20/81-70/50