Subtract 35/8 from 7/90
1st number: 7/90, 2nd number: 4 3/8
7/90 - 35/8 is -1547/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
35/8 = 35 × 45/8 × 45 = 1575/360 - Subtract the two like fractions:
28/360 - 1575/360 = 28 - 1575/360 = -1547/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90-35/8 7/90-70/8 7/90-35/16 21/90-35/8 7/90-35/24 35/90-35/8 7/90-35/40 49/90-35/8 7/90-35/56