Subtract 28/30 from 2/8
2/8 - 28/30 is -41/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
2/8 = 2 × 15/8 × 15 = 30/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
28/30 = 28 × 4/30 × 4 = 112/120 - Subtract the two like fractions:
30/120 - 112/120 = 30 - 112/120 = -82/120 - After reducing the fraction, the answer is -41/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-28/30 2/8-56/30 2/16-28/30 2/8-28/60 6/8-28/30 2/8-84/30 2/24-28/30 2/8-28/90 10/8-28/30 2/40-28/30 14/8-28/30 2/56-28/30