Subtract 14/6 from 81/70
1st number: 1 11/70, 2nd number: 2 2/6
81/70 - 14/6 is -247/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
81/70 = 81 × 3/70 × 3 = 243/210 - Likewise, for the 2nd fraction, since 6 × 35 = 210,
14/6 = 14 × 35/6 × 35 = 490/210 - Subtract the two like fractions:
243/210 - 490/210 = 243 - 490/210 = -247/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/70-28/6 81/70-14/12 81/70-42/6 81/70-14/18 81/70-70/6 81/70-14/30 81/70-98/6 81/70-14/42