Subtract 80/7 from 27/9
1st number: 3 0/9, 2nd number: 11 3/7
27/9 - 80/7 is -59/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
27/9 = 27 × 7/9 × 7 = 189/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
80/7 = 80 × 9/7 × 9 = 720/63 - Subtract the two like fractions:
189/63 - 720/63 = 189 - 720/63 = -531/63 - After reducing the fraction, the answer is -59/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9-80/7 27/18-80/7 27/9-80/14 81/9-80/7 27/9-80/21 27/45-80/7 27/9-80/35 27/63-80/7 27/9-80/49