Subtract 14/60 from 12/81
12/81 - 14/60 is -23/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
12/81 = 12 × 20/81 × 20 = 240/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
14/60 = 14 × 27/60 × 27 = 378/1620 - Subtract the two like fractions:
240/1620 - 378/1620 = 240 - 378/1620 = -138/1620 - After reducing the fraction, the answer is -23/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/81-14/60 12/81-28/60 36/81-14/60 12/81-42/60 60/81-14/60 12/81-70/60 84/81-14/60 12/81-98/60