Subtract 48/12 from 30/28
1st number: 1 2/28, 2nd number: 4 0/12
30/28 - 48/12 is -41/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
30/28 = 30 × 3/28 × 3 = 90/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
48/12 = 48 × 7/12 × 7 = 336/84 - Subtract the two like fractions:
90/84 - 336/84 = 90 - 336/84 = -246/84 - After reducing the fraction, the answer is -41/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-48/12 30/28-96/12 30/56-48/12 30/28-48/24 90/28-48/12 30/84-48/12 30/28-48/36 30/28-48/60 30/28-48/84