Subtract 18/50 from 1/7
1/7 - 18/50 is -38/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 7 × 50 = 350,
1/7 = 1 × 50/7 × 50 = 50/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
18/50 = 18 × 7/50 × 7 = 126/350 - Subtract the two like fractions:
50/350 - 126/350 = 50 - 126/350 = -76/350 - After reducing the fraction, the answer is -38/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7-18/50 1/7-36/50 1/14-18/50 3/7-18/50 1/7-54/50 1/21-18/50 5/7-18/50 1/7-90/50 1/35-18/50 1/49-18/50