Subtract 4/30 from 28/8
1st number: 3 4/8, 2nd number: 4/30
28/8 - 4/30 is 101/30.
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,
28/8 = 28 × 15/8 × 15 = 420/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
4/30 = 4 × 4/30 × 4 = 16/120 - Subtract the two like fractions:
420/120 - 16/120 = 420 - 16/120 = 404/120 - After reducing the fraction, the answer is 101/30
- In mixed form: 311/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-4/30 28/8-8/30 28/16-4/30 28/8-4/60 84/8-4/30 28/8-12/30 28/24-4/30 28/8-4/90 28/8-20/30 28/40-4/30 28/8-28/30 28/56-4/30