Subtract 54/28 from 2/30
1st number: 2/30, 2nd number: 1 26/28
2/30 - 54/28 is -391/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
2/30 = 2 × 14/30 × 14 = 28/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
54/28 = 54 × 15/28 × 15 = 810/420 - Subtract the two like fractions:
28/420 - 810/420 = 28 - 810/420 = -782/420 - After reducing the fraction, the answer is -391/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/30-54/28 2/60-54/28 2/30-54/56 6/30-54/28 2/90-54/28 2/30-54/84 10/30-54/28 14/30-54/28