Subtract 30/50 from 30/28
1st number: 1 2/28, 2nd number: 30/50
30/28 - 30/50 is 33/70.
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,
30/28 = 30 × 25/28 × 25 = 750/700 - Likewise, for the 2nd fraction, since 50 × 14 = 700,
30/50 = 30 × 14/50 × 14 = 420/700 - Subtract the two like fractions:
750/700 - 420/700 = 750 - 420/700 = 330/700 - After reducing the fraction, the answer is 33/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-30/50 30/28-60/50 30/56-30/50 90/28-30/50 30/28-90/50 30/84-30/50