Subtract 1/81 from 40/35
1st number: 1 5/35, 2nd number: 1/81
40/35 - 1/81 is 641/567.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 81 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 35 × 81 = 2835,
40/35 = 40 × 81/35 × 81 = 3240/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
1/81 = 1 × 35/81 × 35 = 35/2835 - Subtract the two like fractions:
3240/2835 - 35/2835 = 3240 - 35/2835 = 3205/2835 - After reducing the fraction, the answer is 641/567
- In mixed form: 174/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35-1/81 40/35-2/81 40/70-1/81 40/35-3/81 40/35-5/81 40/35-7/81