Subtract 98/45 from 9/7
1st number: 1 2/7, 2nd number: 2 8/45
9/7 - 98/45 is -281/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
9/7 = 9 × 45/7 × 45 = 405/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
98/45 = 98 × 7/45 × 7 = 686/315 - Subtract the two like fractions:
405/315 - 686/315 = 405 - 686/315 = -281/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7-98/45 9/14-98/45 9/7-98/90 27/7-98/45 9/21-98/45 45/7-98/45 9/35-98/45 63/7-98/45 9/49-98/45