Subtract 12/28 from 30/4
1st number: 7 2/4, 2nd number: 12/28
30/4 - 12/28 is 99/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
30/4 = 30 × 7/4 × 7 = 210/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
12/28 = 12 × 1/28 × 1 = 12/28 - Subtract the two like fractions:
210/28 - 12/28 = 210 - 12/28 = 198/28 - After reducing the fraction, the answer is 99/14
- In mixed form: 71/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4-12/28 30/4-24/28 30/8-12/28 30/4-12/56 90/4-12/28 30/4-36/28 30/12-12/28 30/4-12/84 30/4-60/28 30/20-12/28 30/4-84/28 30/28-12/28