Subtract 4/90 from 27/8
1st number: 3 3/8, 2nd number: 4/90
27/8 - 4/90 is 1199/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
27/8 = 27 × 45/8 × 45 = 1215/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
4/90 = 4 × 4/90 × 4 = 16/360 - Subtract the two like fractions:
1215/360 - 16/360 = 1215 - 16/360 = 1199/360 - In mixed form: 3119/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8-4/90 27/8-8/90 27/16-4/90 81/8-4/90 27/8-12/90 27/24-4/90 27/8-20/90 27/40-4/90 27/8-28/90 27/56-4/90