Subtract 80/10 from 27/7
1st number: 3 6/7, 2nd number: 8 0/10
27/7 - 80/10 is -29/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
27/7 = 27 × 10/7 × 10 = 270/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
80/10 = 80 × 7/10 × 7 = 560/70 - Subtract the two like fractions:
270/70 - 560/70 = 270 - 560/70 = -290/70 - After reducing the fraction, the answer is -29/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7-80/10 27/14-80/10 27/7-80/20 81/7-80/10 27/21-80/10 27/7-80/30 27/35-80/10 27/7-80/50 27/49-80/10 27/7-80/70