Subtract 24/28 from 90/12
1st number: 7 6/12, 2nd number: 24/28
90/12 - 24/28 is 93/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
24/28 = 24 × 3/28 × 3 = 72/84 - Subtract the two like fractions:
630/84 - 72/84 = 630 - 72/84 = 558/84 - After reducing the fraction, the answer is 93/14
- In mixed form: 69/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-48/28 90/24-24/28 90/12-24/56 90/12-72/28 90/36-24/28 90/12-24/84 90/60-24/28 90/84-24/28