Subtract 3/50 from 18/28
18/28 - 3/50 is 102/175.
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,
3/50 = 3 × 14/50 × 14 = 42/700 - Subtract the two like fractions:
450/700 - 42/700 = 450 - 42/700 = 408/700 - After reducing the fraction, the answer is 102/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-3/50 18/28-6/50 18/56-3/50 54/28-3/50 18/28-9/50 18/84-3/50 90/28-3/50 18/28-15/50 18/28-21/50