Subtract 28/30 from 8/4
1st number: 2 0/4, 2nd number: 28/30
8/4 - 28/30 is 16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
8/4 = 8 × 15/4 × 15 = 120/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
28/30 = 28 × 2/30 × 2 = 56/60 - Subtract the two like fractions:
120/60 - 56/60 = 120 - 56/60 = 64/60 - After reducing the fraction, the answer is 16/15
- In mixed form: 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-28/30 8/4-56/30 8/4-28/60 24/4-28/30 8/4-84/30 8/12-28/30 8/4-28/90 40/4-28/30 8/20-28/30 56/4-28/30 8/28-28/30