Subtract 70/90 from 4/6
4/6 - 70/90 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
4/6 = 4 × 15/6 × 15 = 60/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Subtract the two like fractions:
60/90 - 70/90 = 60 - 70/90 = -10/90 - After reducing the fraction, the answer is -1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/6-70/90 4/12-70/90 12/6-70/90 4/18-70/90 20/6-70/90 4/30-70/90 28/6-70/90 4/42-70/90