Subtract 28/8 from 5/30
1st number: 5/30, 2nd number: 3 4/8
5/30 - 28/8 is -10/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
5/30 = 5 × 4/30 × 4 = 20/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120 - Subtract the two like fractions:
20/120 - 420/120 = 20 - 420/120 = -400/120 - After reducing the fraction, the answer is -10/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-28/8 5/30-56/8 5/60-28/8 5/30-28/16 15/30-28/8 5/30-84/8 5/90-28/8 5/30-28/24 25/30-28/8 5/30-28/40 35/30-28/8 5/30-28/56