Subtract 27/45 from 1/40
1/40 - 27/45 is -23/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
1/40 = 1 × 9/40 × 9 = 9/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
27/45 = 27 × 8/45 × 8 = 216/360 - Subtract the two like fractions:
9/360 - 216/360 = 9 - 216/360 = -207/360 - After reducing the fraction, the answer is -23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-27/45 1/40-54/45 1/80-27/45 1/40-27/90 3/40-27/45 1/40-81/45 5/40-27/45 7/40-27/45