Subtract 18/4 from 90/14
1st number: 6 6/14, 2nd number: 4 2/4
90/14 - 18/4 is 27/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
90/14 = 90 × 2/14 × 2 = 180/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28 - Subtract the two like fractions:
180/28 - 126/28 = 180 - 126/28 = 54/28 - After reducing the fraction, the answer is 27/14
- In mixed form: 113/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14-36/4 90/28-18/4 90/14-18/8 90/14-54/4 90/42-18/4 90/14-18/12 90/14-90/4 90/70-18/4 90/14-18/20 90/98-18/4 90/14-18/28