Subtract 49/45 from 2/7
1st number: 2/7, 2nd number: 1 4/45
2/7 - 49/45 is -253/315.
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,
2/7 = 2 × 45/7 × 45 = 90/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
49/45 = 49 × 7/45 × 7 = 343/315 - Subtract the two like fractions:
90/315 - 343/315 = 90 - 343/315 = -253/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7-49/45 2/7-98/45 2/14-49/45 2/7-49/90 6/7-49/45 2/21-49/45 10/7-49/45 2/35-49/45 14/7-49/45 2/49-49/45