Subtract 10/50 from 18/28
18/28 - 10/50 is 31/70.
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,
10/50 = 10 × 14/50 × 14 = 140/700 - Subtract the two like fractions:
450/700 - 140/700 = 450 - 140/700 = 310/700 - After reducing the fraction, the answer is 31/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-10/50 18/28-20/50 18/56-10/50 54/28-10/50 18/28-30/50 18/84-10/50 90/28-10/50 18/28-70/50