Subtract 70/80 from 8/14
8/14 - 70/80 is -17/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
8/14 = 8 × 40/14 × 40 = 320/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Subtract the two like fractions:
320/560 - 490/560 = 320 - 490/560 = -170/560 - After reducing the fraction, the answer is -17/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14-70/80 8/28-70/80 24/14-70/80 8/42-70/80 40/14-70/80 8/70-70/80 56/14-70/80 8/98-70/80