Subtract 90/28 from 35/2
1st number: 17 1/2, 2nd number: 3 6/28
35/2 - 90/28 is 100/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
35/2 = 35 × 14/2 × 14 = 490/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
90/28 = 90 × 1/28 × 1 = 90/28 - Subtract the two like fractions:
490/28 - 90/28 = 490 - 90/28 = 400/28 - After reducing the fraction, the answer is 100/7
- In mixed form: 142/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-90/28 35/4-90/28 35/2-90/56 35/6-90/28 35/2-90/84 35/10-90/28 35/14-90/28