Subtract 8/27 from 70/84
70/84 - 8/27 is 29/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
70/84 = 70 × 9/84 × 9 = 630/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
8/27 = 8 × 28/27 × 28 = 224/756 - Subtract the two like fractions:
630/756 - 224/756 = 630 - 224/756 = 406/756 - After reducing the fraction, the answer is 29/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84-16/27 70/84-8/54 70/84-24/27 70/84-8/81 70/84-40/27 70/84-56/27