Subtract 28/8 from 4/30
1st number: 4/30, 2nd number: 3 4/8
4/30 - 28/8 is -101/30.
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,
4/30 = 4 × 4/30 × 4 = 16/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120 - Subtract the two like fractions:
16/120 - 420/120 = 16 - 420/120 = -404/120 - After reducing the fraction, the answer is -101/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-28/8 4/30-56/8 4/60-28/8 4/30-28/16 12/30-28/8 4/30-84/8 4/90-28/8 4/30-28/24 20/30-28/8 4/30-28/40 28/30-28/8 4/30-28/56