Subtract 15/28 from 30/8
1st number: 3 6/8, 2nd number: 15/28
30/8 - 15/28 is 45/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
15/28 = 15 × 2/28 × 2 = 30/56 - Subtract the two like fractions:
210/56 - 30/56 = 210 - 30/56 = 180/56 - After reducing the fraction, the answer is 45/14
- In mixed form: 33/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-15/28 30/8-30/28 30/16-15/28 30/8-15/56 90/8-15/28 30/8-45/28 30/24-15/28 30/8-15/84 30/8-75/28 30/40-15/28 30/56-15/28