Subtract 27/72 from 12/35
12/35 - 27/72 is -9/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 35 × 72 = 2520,
12/35 = 12 × 72/35 × 72 = 864/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
27/72 = 27 × 35/72 × 35 = 945/2520 - Subtract the two like fractions:
864/2520 - 945/2520 = 864 - 945/2520 = -81/2520 - After reducing the fraction, the answer is -9/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35-27/72 12/35-54/72 12/70-27/72 36/35-27/72 12/35-81/72 60/35-27/72 84/35-27/72