Subtract 3/8 from 28/45
28/45 - 3/8 is 89/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
3/8 = 3 × 45/8 × 45 = 135/360 - Subtract the two like fractions:
224/360 - 135/360 = 224 - 135/360 = 89/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-3/8 28/45-6/8 28/90-3/8 28/45-3/16 84/45-3/8 28/45-9/8 28/45-3/24 28/45-15/8 28/45-3/40 28/45-21/8 28/45-3/56