Subtract 1/6 from 30/70
30/70 - 1/6 is 11/42.
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,
30/70 = 30 × 3/70 × 3 = 90/210 - Likewise, for the 2nd fraction, since 6 × 35 = 210,
1/6 = 1 × 35/6 × 35 = 35/210 - Subtract the two like fractions:
90/210 - 35/210 = 90 - 35/210 = 55/210 - After reducing the fraction, the answer is 11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70-1/6 30/70-2/6 30/70-1/12 90/70-1/6 30/70-3/6 30/70-1/18 30/70-5/6 30/70-1/30 30/70-7/6 30/70-1/42