Subtract 12/45 from 1/8
1/8 - 12/45 is -17/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
1/8 = 1 × 45/8 × 45 = 45/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
12/45 = 12 × 8/45 × 8 = 96/360 - Subtract the two like fractions:
45/360 - 96/360 = 45 - 96/360 = -51/360 - After reducing the fraction, the answer is -17/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8-12/45 1/8-24/45 1/16-12/45 1/8-12/90 3/8-12/45 1/8-36/45 1/24-12/45 5/8-12/45 1/8-60/45 1/40-12/45 7/8-12/45 1/8-84/45 1/56-12/45