Subtract 7/8 from 18/50
18/50 - 7/8 is -103/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
18/50 = 18 × 4/50 × 4 = 72/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
7/8 = 7 × 25/8 × 25 = 175/200 - Subtract the two like fractions:
72/200 - 175/200 = 72 - 175/200 = -103/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/50-7/8 18/50-14/8 18/50-7/16 54/50-7/8 18/50-21/8 18/50-7/24 90/50-7/8 18/50-35/8 18/50-7/40 18/50-49/8 18/50-7/56