Subtract 36/80 from 1/7
1/7 - 36/80 is -43/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
1/7 = 1 × 80/7 × 80 = 80/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
36/80 = 36 × 7/80 × 7 = 252/560 - Subtract the two like fractions:
80/560 - 252/560 = 80 - 252/560 = -172/560 - After reducing the fraction, the answer is -43/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7-36/80 1/7-72/80 1/14-36/80 3/7-36/80 1/21-36/80 5/7-36/80 1/35-36/80 1/49-36/80