Subtract 10/28 from 30/15
1st number: 2 0/15, 2nd number: 10/28
30/15 - 10/28 is 23/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
30/15 = 30 × 28/15 × 28 = 840/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
10/28 = 10 × 15/28 × 15 = 150/420 - Subtract the two like fractions:
840/420 - 150/420 = 840 - 150/420 = 690/420 - After reducing the fraction, the answer is 23/14
- In mixed form: 19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-10/28 30/15-20/28 30/15-10/56 90/15-10/28 30/15-30/28 30/45-10/28 30/15-10/84 30/15-50/28 30/75-10/28 30/15-70/28