Subtract 30/32 from 35/81
35/81 - 30/32 is -655/1296.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 32 is 2592
Next, find the equivalent fraction of both fractional numbers with denominator 2592 - For the 1st fraction, since 81 × 32 = 2592,
35/81 = 35 × 32/81 × 32 = 1120/2592 - Likewise, for the 2nd fraction, since 32 × 81 = 2592,
30/32 = 30 × 81/32 × 81 = 2430/2592 - Subtract the two like fractions:
1120/2592 - 2430/2592 = 1120 - 2430/2592 = -1310/2592 - After reducing the fraction, the answer is -655/1296
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/81-30/32 35/81-60/32 35/81-30/64 35/81-90/32 35/81-30/96