Subtract 1/50 from 18/28
18/28 - 1/50 is 109/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 50 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 28 × 25 = 700,
18/28 = 18 × 25/28 × 25 = 450/700 - Likewise, for the 2nd fraction, since 50 × 14 = 700,
1/50 = 1 × 14/50 × 14 = 14/700 - Subtract the two like fractions:
450/700 - 14/700 = 450 - 14/700 = 436/700 - After reducing the fraction, the answer is 109/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-1/50 18/28-2/50 18/56-1/50 54/28-1/50 18/28-3/50 18/84-1/50 90/28-1/50 18/28-5/50 18/28-7/50