Subtract 14/80 from 63/70
63/70 - 14/80 is 29/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
63/70 = 63 × 8/70 × 8 = 504/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
14/80 = 14 × 7/80 × 7 = 98/560 - Subtract the two like fractions:
504/560 - 98/560 = 504 - 98/560 = 406/560 - After reducing the fraction, the answer is 29/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-28/80 63/70-42/80 63/70-70/80 63/70-98/80