Subtract 48/72 from 27/40
27/40 - 48/72 is 1/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
27/40 = 27 × 9/40 × 9 = 243/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
48/72 = 48 × 5/72 × 5 = 240/360 - Subtract the two like fractions:
243/360 - 240/360 = 243 - 240/360 = 3/360 - After reducing the fraction, the answer is 1/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-48/72 27/40-96/72 27/80-48/72 81/40-48/72