Subtract 28/7 from 1/9
1st number: 1/9, 2nd number: 4 0/7
1/9 - 28/7 is -35/9.
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,
1/9 = 1 × 7/9 × 7 = 7/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
28/7 = 28 × 9/7 × 9 = 252/63 - Subtract the two like fractions:
7/63 - 252/63 = 7 - 252/63 = -245/63 - After reducing the fraction, the answer is -35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-28/7 1/9-56/7 1/18-28/7 1/9-28/14 3/9-28/7 1/9-84/7 1/27-28/7 1/9-28/21 5/9-28/7 1/45-28/7 1/9-28/35 7/9-28/7 1/63-28/7 1/9-28/49