Subtract 18/7 from 49/45
1st number: 1 4/45, 2nd number: 2 4/7
49/45 - 18/7 is -467/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
49/45 = 49 × 7/45 × 7 = 343/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
18/7 = 18 × 45/7 × 45 = 810/315 - Subtract the two like fractions:
343/315 - 810/315 = 343 - 810/315 = -467/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45-18/7 49/45-36/7 49/90-18/7 49/45-18/14 49/45-54/7 49/45-18/21 49/45-90/7 49/45-18/35 49/45-18/49