Subtract 2/70 from 10/81
10/81 - 2/70 is 269/2835.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
10/81 = 10 × 70/81 × 70 = 700/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
2/70 = 2 × 81/70 × 81 = 162/5670 - Subtract the two like fractions:
700/5670 - 162/5670 = 700 - 162/5670 = 538/5670 - After reducing the fraction, the answer is 269/2835
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/81-2/70 10/81-4/70 30/81-2/70 10/81-6/70 50/81-2/70 10/81-10/70 70/81-2/70 10/81-14/70